sims-hq/docs/superpowers/plans/2026-07-10-hq2-reminders.md

HQ-2 — Reminders, Recurring, AMC, Interactions & Dashboard Implementation Plan

For agentic workers: REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (- [ ]) syntax for tracking. Every task is a full TDD loop: write the failing test verbatim → run it to watch it fail → write the implementation → run it to green → commit. No task depends on code a later task writes.

Goal: Ship HQ-2 of docs/14-SPEC-HQ-CONSOLE.md on top of the HQ-1 apps/hq + apps/hq-web codebase: recurring plans that generate invoices on schedule, a reminder engine (auto-send + manual queue, idempotent across crashes/catch-up, bounce-aware), AMC contracts with derived paid-state, an interaction/visit/call/training log with follow-ups, and a dashboard money-view that becomes the default page after login. All grounded in the real HQ-1 interfaces (createDraft/issueDocument, sendDocumentEmail, getAccount/TokenDeadError, priceOn, writeAudit, formatINR).

Architecture: Extend the HQ server pattern exactly as HQ-1 established it — express + better-sqlite3 behind plain-function repositories (repos-*.ts), pure logic reused from @sims/domain (formatINR, fromRupees, uuidv7, fyOf) and the HQ document engine. New tables are added to the SCHEMA string in db.ts via CREATE TABLE IF NOT EXISTS (no ALTER needed — the table simply appears on next openDb); the one new column (email_log.bounced) is added through the existing guarded migrate(db) PRAGMA/ALTER path. The scheduler is a pure function runDailyScan(db, deps, today) with an injected clock (never Date.now() inside logic) so tests are deterministic; it is wired into server.ts to run on boot and every 6h. Idempotency lives entirely in one UNIQUE constraint — reminder(rule_kind, subject_id, due_period) — reached via INSERT OR IGNORE, which is what makes catch-up after downtime safe with zero extra bookkeeping.

Tech Stack: unchanged from HQ-1 — TypeScript (ESM, strict), express ^4.21, better-sqlite3 ^11.7, puppeteer ^23 (PDF, injected into scheduler/reminder deps so tests never launch Chromium), vitest, React 19 + Vite 6 + react-router 7, @sims/ui. No new dependencies (bounce polling is fetch-based, same as gmail.ts).

Global Constraints

Everything from the HQ-1 plan still holds; the load-bearing ones for HQ-2, plus the extensions:

• All money is integer paise (Paise from @sims/domain); never floats. Amounts render with formatINR.
• All ids are UUIDv7 via uuidv7() from @sims/domain (ids sort by creation time — reused for ORDER BY id).
• Every mutation writes an audit_log row via writeAudit(db, userId, action, entity, entityId, before?, after?). Scheduler-originated mutations use userId = 'system'.
• SQL stays portable (D12 guardrail): standard SQL; SQLite/Postgres-only dialect (INSERT OR IGNORE, ON CONFLICT) is commented as a portability quirk, matching series.ts/seed.ts.
• New tables → SCHEMA const in db.ts with CREATE TABLE IF NOT EXISTS. New tables need no migration entry. New columns → guarded migrate(db) (PRAGMA table_info check then ALTER TABLE … ADD COLUMN), exactly like the existing module.quote_content block.
• HQ prices are GST-exclusive (priceIncludesTax: false); recurring/AMC invoices flow through the same createDraft → computeBill path, so GST (CGST/SGST vs IGST) is computed identically to HQ-1.
• Issued invoices are never edited or deleted. A recurring invoice, once generated and issued, exists permanently; a failed send never deletes or regenerates it.
• Scheduler determinism: runDailyScan(db, deps, today: string) takes the business date as an ISO YYYY-MM-DD param. Wall-clock timestamps (created_at, sent_at) come from deps.now?.() ?? new Date().toISOString() so tests pin them.
• Idempotency / at-most-once: the reminder row is created once per (rule_kind, subject_id, due_period) via INSERT OR IGNORE. Recurring generation, next_run advance, and the reminder insert are one better-sqlite3 transaction (atomic); the async email send happens after commit and only ever transitions an already-committed reminder from queued→sent/failed. A crash therefore never double-generates and never auto-double-sends.
• Failed send never advances the schedule: for recurring, next_run advances on generation (the invoice existing is the spec's condition), not on send — a failed send parks the reminder in the manual queue with its error visible; the invoice still exists and is re-sent from the queue, never regenerated (the UNIQUE key forbids regeneration).
• "sent" ≠ "delivered": email_log.status='sent' means Gmail accepted the message. Delivery failures surface later via pollBounces → email_log.bounced=1 + an email_bounced dashboard reminder.
• Server port 5182. Secrets: HQ_SECRET_KEY, GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET (already used by HQ-1). Never log tokens.
• Tests: vitest, colocated under apps/hq/test/ (already in the vitest include). Puppeteer is injected as deps.renderPdf, and fetch as deps.gmail.f, so every HQ-2 test runs offline and Chromium-free.
• Per-app typecheck is part of the root gate: npm run typecheck runs tsc -p tsconfig.json && npm run typecheck --workspaces --if-present. Both apps/hq and apps/hq-web must typecheck clean at every commit.
• Commit after every task. Each commit message ends with the trailer — use the two--m form:

  git commit -m "feat(hq): <subject>" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"
  

Scope (locked — do not reopen)

In: recurring_plan (generation on next_run), reminder engine (auto + manual queue, idempotent, bounce-aware), amc_contract (+ renewal invoice, derived paid), interaction + interaction_type (+ follow-ups), dashboard money-view (default route) with the manual reminder queue, bounce detection (Gmail readonly scope + pollBounces), and the routes/pages for all of it.

Out (do not plan): SMS pack-balance tracking (founder decision pending); AWS cost pull + cross-client chart (HQ-3); receipt PDFs. Per-rule auto/manual toggles for the dunning rules (overdue/renewal/amc) are intentionally not built — the only auto path is recurring_plan.policy='auto'; dunning/renewal/amc/follow-up reminders always land in the manual queue (this satisfies the founder's "both modes exist": auto = recurring, manual = everything else, and recurring plans carry their own auto/manual policy). State this in the recurring task, don't re-litigate it.

File Structure (HQ-2 additions)

apps/hq/
  src/db.ts               — MODIFY: 5 new CREATE TABLE IF NOT EXISTS + email_log.bounced in migrate()
  src/seed.ts             — MODIFY: seed interaction_type rows, AMC module, reminder.* settings
  src/repos-recurring.ts  — NEW: recurring_plan CRUD
  src/repos-amc.ts        — NEW: amc_contract CRUD + renewal invoice + derived paid
  src/repos-interactions.ts — NEW: interaction_type + interaction CRUD + follow-ups
  src/reminder-templates.ts — NEW: subject+body text per rule_kind (formatINR, Indian business English)
  src/repos-reminders.ts  — NEW: reminder upsert/list/dismiss + sendReminder orchestration + settings helpers
  src/gmail.ts            — MODIFY: add sendReminderEmail (attachment-optional, no document coupling)
  src/scheduler.ts        — NEW: runDailyScan (pure), startScheduler (setInterval, unref)
  src/bounces.ts          — NEW: pollBounces + markBounce (fetch-based, injectable Fetcher)
  src/repos-payments.ts   — MODIFY: export outstandingPaise(db, docId)
  src/repos-dashboard.ts  — NEW: dashboardView aggregation
  src/api.ts              — MODIFY: recurring / amc / interactions / reminders / dashboard routes
  src/server.ts           — MODIFY: startServer(port, { scheduler }) wiring
  scripts/gmail-connect.ts — MODIFY: SCOPE gains gmail.readonly (for bounce polling)
  test/*.test.ts          — NEW: one file per task
apps/hq-web/
  src/api.ts              — MODIFY: types + typed calls for recurring/amc/interactions/reminders/dashboard
  src/Layout.tsx          — MODIFY: nav gains Dashboard (default) + Clients
  src/main.tsx            — MODIFY: '/' → Dashboard, '/clients' → Clients
  src/pages/Dashboard.tsx — NEW: money view + manual reminder queue
  src/pages/ClientDetail.tsx — MODIFY: AMC, Interactions, Recurring sections

---

Task 1: HQ-2 schema — new tables, email_log.bounced, seeds

Files:

• Modify: apps/hq/src/db.ts (append 5 tables to SCHEMA; add the bounced column to migrate), apps/hq/src/seed.ts (seed lookups + settings + AMC module)
• Test: apps/hq/test/hq2-schema.test.ts

Interfaces:

• Produces (schema only — no new TS exports): tables recurring_plan, amc_contract, interaction, interaction_type, reminder; column email_log.bounced INTEGER NOT NULL DEFAULT 0. seedIfEmpty additionally seeds the 7 interaction_type rows, one module row code='AMC', and settings reminders.overdue_days='7', reminders.renewal_days='15'.

• Note on reminder.doc_id: the locked column list is extended with one nullable column, doc_id TEXT, carrying the document a reminder concerns (the overdue invoice, the generated recurring invoice, an AMC renewal invoice). It is required so the manual-queue Send action and the recurring auto-send can attach/reference the right PDF; subject_id stays the logical subject (plan/module/contract/interaction/invoice). For invoice_overdue, subject_id == doc_id.

• Step 1: Write the failing test

// apps/hq/test/hq2-schema.test.ts
import { describe, it, expect } from 'vitest'
import { openDb } from '../src/db'
import { seedIfEmpty } from '../src/seed'

describe('hq2 schema', () => {
  it('creates every HQ-2 table', () => {
    const db = openDb(':memory:')
    const names = (db.prepare(`SELECT name FROM sqlite_master WHERE type='table'`).all() as { name: string }[]).map((r) => r.name)
    for (const t of ['recurring_plan', 'amc_contract', 'interaction', 'interaction_type', 'reminder'])
      expect(names, `missing table ${t}`).toContain(t)
  })
  it('adds the bounced column to email_log', () => {
    const db = openDb(':memory:')
    const cols = (db.prepare(`PRAGMA table_info(email_log)`).all() as { name: string }[]).map((c) => c.name)
    expect(cols).toContain('bounced')
  })
  it('enforces the reminder idempotency key', () => {
    const db = openDb(':memory:')
    const ins = db.prepare(
      `INSERT OR IGNORE INTO reminder (id, rule_kind, subject_id, due_period, client_id, status, policy_applied, created_at)
       VALUES (?, 'invoice_overdue', 's1', '2026-07', 'c1', 'queued', 'manual', '2026-07-10T00:00:00Z')`,
    )
    expect(ins.run('r1').changes).toBe(1)
    expect(ins.run('r2').changes).toBe(0) // same (rule_kind, subject_id, due_period) → ignored
  })
  it('seeds interaction types, the AMC module and reminder settings', () => {
    const db = openDb(':memory:'); seedIfEmpty(db)
    const types = (db.prepare(`SELECT code FROM interaction_type`).all() as { code: string }[]).map((r) => r.code)
    expect(types).toEqual(expect.arrayContaining(['call', 'site_visit', 'training', 'complaint']))
    expect(db.prepare(`SELECT COUNT(*) AS n FROM module WHERE code='AMC'`).get()).toMatchObject({ n: 1 })
    const s = (db.prepare(`SELECT value FROM setting WHERE key='reminders.overdue_days'`).get() as { value: string } | undefined)
    expect(s?.value).toBe('7')
  })
})

• Step 2: Run to verify FAIL — npx vitest run apps/hq/test/hq2-schema.test.ts → FAIL (tables/column/seeds absent).

• Step 3: Implement. Append to the SCHEMA template string in apps/hq/src/db.ts (before the closing backtick):

CREATE TABLE IF NOT EXISTS recurring_plan (
  id TEXT PRIMARY KEY, client_id TEXT NOT NULL,
  client_module_id TEXT, -- source of the invoice line's module; required for generation in HQ-2
  cadence TEXT NOT NULL CHECK (cadence IN ('monthly','yearly')),
  amount_paise INTEGER, -- NULL = price from module_price_book at generation time
  next_run TEXT NOT NULL,
  policy TEXT NOT NULL DEFAULT 'manual' CHECK (policy IN ('auto','manual')),
  active INTEGER NOT NULL DEFAULT 1
);
CREATE TABLE IF NOT EXISTS amc_contract (
  id TEXT PRIMARY KEY, client_id TEXT NOT NULL, coverage TEXT NOT NULL DEFAULT '',
  period_from TEXT NOT NULL, period_to TEXT NOT NULL, amount_paise INTEGER NOT NULL,
  renewal_reminder_days INTEGER NOT NULL DEFAULT 30,
  legacy_paid INTEGER, -- manual flag for imported contracts only; else paid derives from invoice_doc_id
  invoice_doc_id TEXT, active INTEGER NOT NULL DEFAULT 1
);
CREATE TABLE IF NOT EXISTS interaction_type (
  code TEXT PRIMARY KEY, label TEXT NOT NULL
);
CREATE TABLE IF NOT EXISTS interaction (
  id TEXT PRIMARY KEY, client_id TEXT NOT NULL, type_code TEXT NOT NULL,
  on_date TEXT NOT NULL, staff_id TEXT NOT NULL, notes TEXT NOT NULL DEFAULT '',
  outcome TEXT CHECK (outcome IN ('positive','neutral','negative')),
  follow_up_on TEXT, created_at TEXT NOT NULL
);
CREATE TABLE IF NOT EXISTS reminder (
  id TEXT PRIMARY KEY,
  rule_kind TEXT NOT NULL CHECK (rule_kind IN
    ('invoice_overdue','renewal_due','amc_expiring','follow_up','recurring_generated','email_bounced')),
  subject_id TEXT NOT NULL, due_period TEXT NOT NULL, client_id TEXT NOT NULL,
  doc_id TEXT, -- the document this reminder concerns (overdue/recurring/amc invoice); NULL otherwise
  status TEXT NOT NULL DEFAULT 'queued' CHECK (status IN ('queued','sent','failed','dismissed')),
  policy_applied TEXT NOT NULL DEFAULT 'manual' CHECK (policy_applied IN ('auto','manual')),
  error TEXT, created_at TEXT NOT NULL, sent_at TEXT,
  UNIQUE (rule_kind, subject_id, due_period) -- the idempotency key: at-most-once per due-period
);

In migrate(db) add the guarded column (same shape as the existing quote_content block):

  const emailCols = db.prepare(`PRAGMA table_info(email_log)`).all() as { name: string }[]
  if (!emailCols.some((c) => c.name === 'bounced')) {
    db.exec(`ALTER TABLE email_log ADD COLUMN bounced INTEGER NOT NULL DEFAULT 0`)
  }

In apps/hq/src/seed.ts — import createModule and extend seedIfEmpty (after the existing GST18 block):

import { createModule } from './repos-modules'
// ...
const INTERACTION_TYPES: [string, string][] = [
  ['call', 'Call'], ['site_visit', 'Site visit'], ['training', 'Training'],
  ['courtesy_meeting', 'Courtesy meeting'], ['committee_meeting', 'Committee meeting'],
  ['demo', 'Demo'], ['complaint', 'Complaint'],
]
const REMINDER_SETTINGS: Record<string, string> = {
  'reminders.overdue_days': '7',
  'reminders.renewal_days': '15',
}

and inside seedIfEmpty, after the tax-class seed:

  const typeInsert = db.prepare(
    `INSERT INTO interaction_type (code, label) VALUES (?, ?) ON CONFLICT (code) DO NOTHING`,
  )
  let seededTypes = 0
  for (const [code, label] of INTERACTION_TYPES) seededTypes += typeInsert.run(code, label).changes
  if (seededTypes > 0) writeAudit(db, 'system', 'seed', 'interaction_type', '*', undefined, { count: seededTypes })

  let seededReminderSettings = 0
  for (const [key, value] of Object.entries(REMINDER_SETTINGS)) seededReminderSettings += insert.run(key, value).changes
  if (seededReminderSettings > 0) writeAudit(db, 'system', 'seed', 'setting', 'reminders.*', undefined, REMINDER_SETTINGS)

  const amc = db.prepare(`SELECT COUNT(*) AS n FROM module WHERE code='AMC'`).get() as { n: number }
  if (amc.n === 0) {
    // The AMC/renewal invoice line hangs off a real module so it flows through
    // createDraft → computeBill unchanged. SAC 998719 (maintenance/repair) — CA to confirm.
    createModule(db, 'system', {
      code: 'AMC', name: 'Annual Maintenance Contract', sac: '998719',
      allowedKinds: ['yearly', 'one_time'],
    })
  }

(insert is the existing INSERT … ON CONFLICT (key) DO NOTHING setting statement already defined in seedIfEmpty.)

• Step 4: Run tests — npx vitest run apps/hq/test/hq2-schema.test.ts → PASS. npm run typecheck → clean.

• Step 5: Commit

git add apps/hq/src/db.ts apps/hq/src/seed.ts apps/hq/test/hq2-schema.test.ts
git commit -m "feat(hq): hq-2 schema — recurring/amc/interaction/reminder tables + bounce column + seeds" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"

---

Task 2: Recurring plans — repo + owner-gated routes

Files:

• Create: apps/hq/src/repos-recurring.ts
• Modify: apps/hq/src/api.ts
• Test: apps/hq/test/recurring.test.ts

Interfaces:

• Produces:

  • RecurringPlan = { id: string; clientId: string; clientModuleId: string | null; cadence: 'monthly'|'yearly'; amountPaise: number | null; nextRun: string; policy: 'auto'|'manual'; active: boolean }
  • createRecurringPlan(db, userId, input: { clientId: string; clientModuleId: string; cadence: 'monthly'|'yearly'; amountPaise?: number; nextRun: string; policy?: 'auto'|'manual' }): RecurringPlan — validates the client and client_module exist and belong together; validates that a price is resolvable (either amountPaise given, or the client_module's module has a priceOn for the cadence's kind on nextRun). clientModuleId is required in HQ-2 (it is the module for the invoice line; the schema keeps the column nullable for future client-level plans).
  • getRecurringPlan(db, id): RecurringPlan | null; listRecurringPlans(db, clientId?): RecurringPlan[].
  • updateRecurringPlan(db, userId, id, patch: { cadence?; amountPaise?: number | null; nextRun?; policy?; active? }): RecurringPlan.
  • deactivateRecurringPlan(db, userId, id): RecurringPlan (sets active=0).
  • CADENCE_KIND: Record<'monthly'|'yearly', Kind> = { monthly: 'monthly', yearly: 'yearly' } (exported — reused by the scheduler).

• Routes (create/update/deactivate are owner-gated — money): GET /api/recurring?clientId=, POST /api/clients/:id/recurring (owner), PATCH /api/recurring/:id (owner), POST /api/recurring/:id/deactivate (owner).

• Step 1: Write the failing test

// apps/hq/test/recurring.test.ts
import { describe, it, expect } from 'vitest'
import { openDb } from '../src/db'
import { createClient } from '../src/repos-clients'
import { assignModule, createModule, setPrice } from '../src/repos-modules'
import {
  createRecurringPlan, listRecurringPlans, updateRecurringPlan, deactivateRecurringPlan,
} from '../src/repos-recurring'

function setup() {
  const db = openDb(':memory:')
  const c = createClient(db, 'u1', { name: 'Acme', stateCode: '32' })
  const m = createModule(db, 'u1', { code: 'CLOUD', name: 'Cloud Hosting', allowedKinds: ['monthly', 'yearly'] })
  setPrice(db, 'u1', { moduleId: m.id, kind: 'monthly', pricePaise: 2_000_00, effectiveFrom: '2026-04-01' })
  const cm = assignModule(db, 'u1', { clientId: c.id, moduleId: m.id, kind: 'monthly' })
  return { db, c, m, cm }
}

describe('recurring plans', () => {
  it('creates a plan, lists it, updates and deactivates with audit', () => {
    const { db, c, cm } = setup()
    const p = createRecurringPlan(db, 'u1', {
      clientId: c.id, clientModuleId: cm.id, cadence: 'monthly', nextRun: '2026-08-01', policy: 'auto',
    })
    expect(p.policy).toBe('auto')
    expect(p.amountPaise).toBeNull() // price resolves from the module at generation
    expect(listRecurringPlans(db, c.id)).toHaveLength(1)
    const up = updateRecurringPlan(db, 'u1', p.id, { amountPaise: 2_500_00 })
    expect(up.amountPaise).toBe(2_500_00)
    const off = deactivateRecurringPlan(db, 'u1', p.id)
    expect(off.active).toBe(false)
    const audits = db.prepare(`SELECT action FROM audit_log WHERE entity='recurring_plan'`).all()
    expect(audits.length).toBe(3) // create + update + deactivate
  })
  it('rejects a plan whose module has no price and no explicit amount', () => {
    const db = openDb(':memory:')
    const c = createClient(db, 'u1', { name: 'X', stateCode: '32' })
    const m = createModule(db, 'u1', { code: 'POS', name: 'POS', allowedKinds: ['yearly'] })
    const cm = assignModule(db, 'u1', { clientId: c.id, moduleId: m.id, kind: 'yearly' })
    expect(() => createRecurringPlan(db, 'u1', {
      clientId: c.id, clientModuleId: cm.id, cadence: 'yearly', nextRun: '2026-08-01',
    })).toThrow(/price/i)
  })
  it('rejects a client_module that belongs to another client', () => {
    const { db, cm } = setup()
    const other = createClient(db, 'u1', { name: 'Other', stateCode: '32' })
    expect(() => createRecurringPlan(db, 'u1', {
      clientId: other.id, clientModuleId: cm.id, cadence: 'monthly', nextRun: '2026-08-01', amountPaise: 100_00,
    })).toThrow(/client/i)
  })
})

• Step 2: Run to verify FAIL — npx vitest run apps/hq/test/recurring.test.ts → FAIL (module not found).

• Step 3: Implement apps/hq/src/repos-recurring.ts

import { uuidv7 } from '@sims/domain'
import { writeAudit } from './audit'
import type { DB } from './db'
import { getClient } from './repos-clients'
import { getClientModule, priceOn, type Kind } from './repos-modules'

/** Recurring billing plans — plain functions over the handle (D12 portable-repo pattern). */

export type Cadence = 'monthly' | 'yearly'
export const CADENCE_KIND: Record<Cadence, Kind> = { monthly: 'monthly', yearly: 'yearly' }

export interface RecurringPlan {
  id: string; clientId: string; clientModuleId: string | null; cadence: Cadence
  amountPaise: number | null; nextRun: string; policy: 'auto' | 'manual'; active: boolean
}

interface RecurringRow {
  id: string; client_id: string; client_module_id: string | null; cadence: string
  amount_paise: number | null; next_run: string; policy: string; active: number
}

function toPlan(r: RecurringRow): RecurringPlan {
  return {
    id: r.id, clientId: r.client_id, clientModuleId: r.client_module_id,
    cadence: r.cadence as Cadence, amountPaise: r.amount_paise, nextRun: r.next_run,
    policy: r.policy as 'auto' | 'manual', active: r.active === 1,
  }
}

export function getRecurringPlan(db: DB, id: string): RecurringPlan | null {
  const row = db.prepare(`SELECT * FROM recurring_plan WHERE id=?`).get(id) as RecurringRow | undefined
  return row === undefined ? null : toPlan(row)
}

export function listRecurringPlans(db: DB, clientId?: string): RecurringPlan[] {
  const rows = clientId === undefined
    ? db.prepare(`SELECT * FROM recurring_plan ORDER BY id DESC`).all() as RecurringRow[]
    : db.prepare(`SELECT * FROM recurring_plan WHERE client_id=? ORDER BY id DESC`).all(clientId) as RecurringRow[]
  return rows.map(toPlan)
}

export interface CreateRecurringInput {
  clientId: string; clientModuleId: string; cadence: Cadence
  amountPaise?: number; nextRun: string; policy?: 'auto' | 'manual'
}

export function createRecurringPlan(db: DB, userId: string, input: CreateRecurringInput): RecurringPlan {
  if (getClient(db, input.clientId) === null) throw new Error('Client not found')
  const cm = getClientModule(db, input.clientModuleId)
  if (cm === null) throw new Error('Client module not found')
  if (cm.clientId !== input.clientId) throw new Error('Client module belongs to another client')
  if (input.amountPaise !== undefined && (!Number.isInteger(input.amountPaise) || input.amountPaise < 0)) {
    throw new Error('amountPaise must be a non-negative integer (paise)')
  }
  // A plan must be priceable at generation time: explicit amount, or a resolvable module price.
  if (input.amountPaise === undefined) {
    const kind = CADENCE_KIND[input.cadence]
    if (priceOn(db, cm.moduleId, kind, cm.edition, input.nextRun) === null) {
      throw new Error(`No ${kind} price for the module on ${input.nextRun}; set an amount or add a price`)
    }
  }
  const id = uuidv7()
  db.prepare(
    `INSERT INTO recurring_plan (id, client_id, client_module_id, cadence, amount_paise, next_run, policy, active)
     VALUES (?, ?, ?, ?, ?, ?, ?, 1)`,
  ).run(
    id, input.clientId, input.clientModuleId, input.cadence,
    input.amountPaise ?? null, input.nextRun, input.policy ?? 'manual',
  )
  const plan = getRecurringPlan(db, id)!
  writeAudit(db, userId, 'create', 'recurring_plan', id, undefined, plan)
  return plan
}

export interface RecurringPatch {
  cadence?: Cadence; amountPaise?: number | null; nextRun?: string
  policy?: 'auto' | 'manual'; active?: boolean
}

export function updateRecurringPlan(db: DB, userId: string, id: string, patch: RecurringPatch): RecurringPlan {
  const before = getRecurringPlan(db, id)
  if (before === null) throw new Error('Recurring plan not found')
  const sets: string[] = []
  const args: unknown[] = []
  if (patch.cadence !== undefined) { sets.push('cadence=?'); args.push(patch.cadence) }
  if (patch.amountPaise !== undefined) { sets.push('amount_paise=?'); args.push(patch.amountPaise) }
  if (patch.nextRun !== undefined) { sets.push('next_run=?'); args.push(patch.nextRun) }
  if (patch.policy !== undefined) { sets.push('policy=?'); args.push(patch.policy) }
  if (patch.active !== undefined) { sets.push('active=?'); args.push(patch.active ? 1 : 0) }
  if (sets.length > 0) {
    args.push(id)
    db.prepare(`UPDATE recurring_plan SET ${sets.join(', ')} WHERE id=?`).run(...args)
  }
  const after = getRecurringPlan(db, id)!
  writeAudit(db, userId, 'update', 'recurring_plan', id, before, after)
  return after
}

export function deactivateRecurringPlan(db: DB, userId: string, id: string): RecurringPlan {
  return updateRecurringPlan(db, userId, id, { active: false })
}

Wire routes in apps/hq/src/api.ts — add the import and the block (owner gate on writes, matching the modules block):

import {
  createRecurringPlan, deactivateRecurringPlan, getRecurringPlan, listRecurringPlans,
  updateRecurringPlan, type CreateRecurringInput, type RecurringPatch,
} from './repos-recurring'

  // ---------- recurring plans ----------
  r.get('/recurring', requireAuth, (req, res) => {
    const clientId = typeof req.query['clientId'] === 'string' ? req.query['clientId'] : undefined
    res.json({ ok: true, plans: listRecurringPlans(db, clientId) })
  })
  r.post('/clients/:id/recurring', requireAuth, requireOwner, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getClient(db, id) === null) { res.status(404).json({ ok: false, error: 'Client not found' }); return }
    try {
      const plan = createRecurringPlan(db, staffId(res), {
        ...(req.body as Omit<CreateRecurringInput, 'clientId'>), clientId: id,
      })
      res.json({ ok: true, plan })
    } catch (err) {
      res.status(400).json({ ok: false, error: err instanceof Error ? err.message : String(err) })
    }
  })
  r.patch('/recurring/:id', requireAuth, requireOwner, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getRecurringPlan(db, id) === null) { res.status(404).json({ ok: false, error: 'Recurring plan not found' }); return }
    try {
      res.json({ ok: true, plan: updateRecurringPlan(db, staffId(res), id, req.body as RecurringPatch) })
    } catch (err) {
      res.status(400).json({ ok: false, error: err instanceof Error ? err.message : String(err) })
    }
  })
  r.post('/recurring/:id/deactivate', requireAuth, requireOwner, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getRecurringPlan(db, id) === null) { res.status(404).json({ ok: false, error: 'Recurring plan not found' }); return }
    res.json({ ok: true, plan: deactivateRecurringPlan(db, staffId(res), id) })
  })

• Step 4: Run tests — npx vitest run apps/hq/test/recurring.test.ts → PASS. npm run typecheck → clean.

• Step 5: Commit

git add apps/hq/src/repos-recurring.ts apps/hq/src/api.ts apps/hq/test/recurring.test.ts
git commit -m "feat(hq): recurring plan repo and owner-gated routes" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"

---

Task 3: AMC contracts — repo, renewal invoice, derived paid state, routes

Files:

• Create: apps/hq/src/repos-amc.ts
• Modify: apps/hq/src/api.ts
• Test: apps/hq/test/amc.test.ts

Interfaces:

• Consumes: createDraft, issueDocument, getDocument; outstandingPaise (added in Task 7 — until then AMC paid-state uses the local outstandingOf helper defined here that mirrors repos-payments; when Task 7 lands, switch amcPaidStatus to import outstandingPaise). To keep Task 3 self-contained, this task defines its own tiny outstanding read; Task 7 does not require editing Task 3.

• Produces:

  • AmcContract = { id: string; clientId: string; coverage: string; periodFrom: string; periodTo: string; amountPaise: number; renewalReminderDays: number; legacyPaid: boolean | null; invoiceDocId: string | null; active: boolean }
  • createAmc(db, userId, input: { clientId; coverage?; periodFrom; periodTo; amountPaise; renewalReminderDays?; legacyPaid?: boolean }): AmcContract
  • getAmc(db, id): AmcContract | null; listAmc(db, clientId): AmcContract[]
  • updateAmc(db, userId, id, patch): AmcContract; deactivateAmc(db, userId, id): AmcContract
  • generateAmcRenewalInvoice(db, userId, amcId): Doc — builds one INVOICE line via the seeded AMC module (description = coverage, qty 1, kind 'yearly', unitPricePaise = amc.amountPaise), createDraft → issueDocument, then sets amc_contract.invoice_doc_id; throws if an invoice is already linked and unpaid.
  • amcPaidStatus(db, amc): 'paid' | 'unpaid' | 'unbilled' — legacyPaid === true → 'paid'; else no invoiceDocId → 'unbilled'; else outstanding on the linked invoice <= 0 → 'paid' else 'unpaid'.

• Routes: GET /api/clients/:id/amc, POST /api/clients/:id/amc (owner), PATCH /api/amc/:id (owner), POST /api/amc/:id/deactivate (owner), POST /api/amc/:id/renewal-invoice (owner).

• Step 1: Write the failing test

// apps/hq/test/amc.test.ts
import { describe, it, expect } from 'vitest'
import { openDb } from '../src/db'
import { seedIfEmpty } from '../src/seed'
import { createClient } from '../src/repos-clients'
import { recordPayment } from '../src/repos-payments'
import {
  createAmc, listAmc, generateAmcRenewalInvoice, amcPaidStatus, getAmc,
} from '../src/repos-amc'

function setup() {
  const db = openDb(':memory:'); seedIfEmpty(db) // seeds company.state_code, GST18, AMC module
  const c = createClient(db, 'u1', { name: 'Acme', stateCode: '32' })
  return { db, c }
}

describe('amc contracts', () => {
  it('creates, generates a renewal invoice, and derives paid from settlement', () => {
    const { db, c } = setup()
    const amc = createAmc(db, 'u1', {
      clientId: c.id, coverage: 'On-site support', periodFrom: '2026-04-01', periodTo: '2027-03-31',
      amountPaise: 20_000_00,
    })
    expect(listAmc(db, c.id)).toHaveLength(1)
    expect(amcPaidStatus(db, getAmc(db, amc.id)!)).toBe('unbilled')
    const inv = generateAmcRenewalInvoice(db, 'u1', amc.id)
    expect(inv.docType).toBe('INVOICE')
    expect(inv.payablePaise).toBe(23_600_00) // 20,000 + 18% GST intra-state
    expect(amcPaidStatus(db, getAmc(db, amc.id)!)).toBe('unpaid')
    recordPayment(db, 'u1', { clientId: c.id, receivedOn: '2026-07-10', mode: 'bank', amountPaise: 23_600_00 })
    expect(amcPaidStatus(db, getAmc(db, amc.id)!)).toBe('paid')
  })
  it('honours the legacy_paid flag for imported contracts without an invoice', () => {
    const { db, c } = setup()
    const amc = createAmc(db, 'u1', {
      clientId: c.id, periodFrom: '2025-04-01', periodTo: '2026-03-31', amountPaise: 10_000_00, legacyPaid: true,
    })
    expect(amcPaidStatus(db, getAmc(db, amc.id)!)).toBe('paid')
  })
})

• Step 2: Run to verify FAIL — npx vitest run apps/hq/test/amc.test.ts → FAIL.

• Step 3: Implement apps/hq/src/repos-amc.ts

import { uuidv7 } from '@sims/domain'
import { writeAudit } from './audit'
import type { DB } from './db'
import { getClient } from './repos-clients'
import { getModule } from './repos-modules'
import { createDraft, getDocument, issueDocument, type Doc } from './repos-documents'

/** AMC contracts — plain functions over the handle (D12 pattern). Paid state is
 *  derived from the linked invoice's settlement; legacy_paid is a manual flag for
 *  imported contracts only, so there is one source of truth and no drift. */

export interface AmcContract {
  id: string; clientId: string; coverage: string; periodFrom: string; periodTo: string
  amountPaise: number; renewalReminderDays: number; legacyPaid: boolean | null
  invoiceDocId: string | null; active: boolean
}

interface AmcRow {
  id: string; client_id: string; coverage: string; period_from: string; period_to: string
  amount_paise: number; renewal_reminder_days: number; legacy_paid: number | null
  invoice_doc_id: string | null; active: number
}

function toAmc(r: AmcRow): AmcContract {
  return {
    id: r.id, clientId: r.client_id, coverage: r.coverage,
    periodFrom: r.period_from, periodTo: r.period_to, amountPaise: r.amount_paise,
    renewalReminderDays: r.renewal_reminder_days,
    legacyPaid: r.legacy_paid === null ? null : r.legacy_paid === 1,
    invoiceDocId: r.invoice_doc_id, active: r.active === 1,
  }
}

export function getAmc(db: DB, id: string): AmcContract | null {
  const row = db.prepare(`SELECT * FROM amc_contract WHERE id=?`).get(id) as AmcRow | undefined
  return row === undefined ? null : toAmc(row)
}

export function listAmc(db: DB, clientId: string): AmcContract[] {
  const rows = db.prepare(`SELECT * FROM amc_contract WHERE client_id=? ORDER BY id DESC`).all(clientId) as AmcRow[]
  return rows.map(toAmc)
}

export interface CreateAmcInput {
  clientId: string; coverage?: string; periodFrom: string; periodTo: string
  amountPaise: number; renewalReminderDays?: number; legacyPaid?: boolean
}

export function createAmc(db: DB, userId: string, input: CreateAmcInput): AmcContract {
  if (getClient(db, input.clientId) === null) throw new Error('Client not found')
  if (!Number.isInteger(input.amountPaise) || input.amountPaise < 0) {
    throw new Error('amountPaise must be a non-negative integer (paise)')
  }
  const id = uuidv7()
  db.prepare(
    `INSERT INTO amc_contract (id, client_id, coverage, period_from, period_to, amount_paise,
       renewal_reminder_days, legacy_paid, invoice_doc_id, active)
     VALUES (?, ?, ?, ?, ?, ?, ?, ?, NULL, 1)`,
  ).run(
    id, input.clientId, input.coverage ?? '', input.periodFrom, input.periodTo, input.amountPaise,
    input.renewalReminderDays ?? 30, input.legacyPaid === undefined ? null : input.legacyPaid ? 1 : 0,
  )
  const amc = getAmc(db, id)!
  writeAudit(db, userId, 'create', 'amc_contract', id, undefined, amc)
  return amc
}

export interface AmcPatch {
  coverage?: string; periodFrom?: string; periodTo?: string; amountPaise?: number
  renewalReminderDays?: number; legacyPaid?: boolean | null; active?: boolean
}

export function updateAmc(db: DB, userId: string, id: string, patch: AmcPatch): AmcContract {
  const before = getAmc(db, id)
  if (before === null) throw new Error('AMC contract not found')
  const sets: string[] = []
  const args: unknown[] = []
  if (patch.coverage !== undefined) { sets.push('coverage=?'); args.push(patch.coverage) }
  if (patch.periodFrom !== undefined) { sets.push('period_from=?'); args.push(patch.periodFrom) }
  if (patch.periodTo !== undefined) { sets.push('period_to=?'); args.push(patch.periodTo) }
  if (patch.amountPaise !== undefined) { sets.push('amount_paise=?'); args.push(patch.amountPaise) }
  if (patch.renewalReminderDays !== undefined) { sets.push('renewal_reminder_days=?'); args.push(patch.renewalReminderDays) }
  if (patch.legacyPaid !== undefined) { sets.push('legacy_paid=?'); args.push(patch.legacyPaid === null ? null : patch.legacyPaid ? 1 : 0) }
  if (patch.active !== undefined) { sets.push('active=?'); args.push(patch.active ? 1 : 0) }
  if (sets.length > 0) {
    args.push(id)
    db.prepare(`UPDATE amc_contract SET ${sets.join(', ')} WHERE id=?`).run(...args)
  }
  const after = getAmc(db, id)!
  writeAudit(db, userId, 'update', 'amc_contract', id, before, after)
  return after
}

export function deactivateAmc(db: DB, userId: string, id: string): AmcContract {
  return updateAmc(db, userId, id, { active: false })
}

/** Renewal invoice for an AMC: one line on the seeded AMC module, priced at the
 *  contract amount, issued and linked back via invoice_doc_id. */
export function generateAmcRenewalInvoice(db: DB, userId: string, amcId: string): Doc {
  const amc = getAmc(db, amcId)
  if (amc === null) throw new Error('AMC contract not found')
  if (amc.invoiceDocId !== null) {
    const existing = getDocument(db, amc.invoiceDocId)
    if (existing !== null && existing.status !== 'cancelled' && outstandingOf(db, existing.id) > 0) {
      throw new Error(`AMC already has an unpaid renewal invoice ${existing.docNo}`)
    }
  }
  const amcModule = db.prepare(`SELECT id FROM module WHERE code='AMC'`).get() as { id: string } | undefined
  if (amcModule === undefined) throw new Error('AMC module missing — run the seed')
  return db.transaction(() => {
    const draft = createDraft(db, userId, {
      docType: 'INVOICE', clientId: amc.clientId,
      lines: [{
        moduleId: amcModule.id, description: amc.coverage !== '' ? amc.coverage : 'Annual Maintenance',
        qty: 1, kind: 'yearly', unitPricePaise: amc.amountPaise,
      }],
    })
    const inv = issueDocument(db, userId, draft.id)
    db.prepare(`UPDATE amc_contract SET invoice_doc_id=? WHERE id=?`).run(inv.id, amcId)
    writeAudit(db, userId, 'update', 'amc_contract', amcId, { invoiceDocId: amc.invoiceDocId }, { invoiceDocId: inv.id })
    return inv
  })()
}

/** Local outstanding read (payable − allocations − non-cancelled credit notes) —
 *  mirrors repos-payments.outstandingOf. Task 7 exports outstandingPaise; this can
 *  switch to it then, but does not depend on Task 7 to compile. */
function outstandingOf(db: DB, docId: string): number {
  const doc = getDocument(db, docId)
  if (doc === null) return 0
  const alloc = (db.prepare(
    `SELECT COALESCE(SUM(amount_paise), 0) AS total FROM payment_allocation WHERE document_id=?`,
  ).get(docId) as { total: number }).total
  const credited = (db.prepare(
    `SELECT COALESCE(SUM(payable_paise), 0) AS total FROM document
     WHERE doc_type='CREDIT_NOTE' AND ref_doc_id=? AND status != 'cancelled'`,
  ).get(docId) as { total: number }).total
  return doc.payablePaise - alloc - credited
}

export function amcPaidStatus(db: DB, amc: AmcContract): 'paid' | 'unpaid' | 'unbilled' {
  if (amc.legacyPaid === true) return 'paid'
  if (amc.invoiceDocId === null) return 'unbilled'
  return outstandingOf(db, amc.invoiceDocId) <= 0 ? 'paid' : 'unpaid'
}

Wire routes in api.ts (import + block; writes owner-gated):

import {
  amcPaidStatus, createAmc, deactivateAmc, generateAmcRenewalInvoice, getAmc, listAmc,
  updateAmc, type AmcPatch, type CreateAmcInput,
} from './repos-amc'

  // ---------- amc ----------
  r.get('/clients/:id/amc', requireAuth, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getClient(db, id) === null) { res.status(404).json({ ok: false, error: 'Client not found' }); return }
    const contracts = listAmc(db, id).map((a) => ({ ...a, paidStatus: amcPaidStatus(db, a) }))
    res.json({ ok: true, contracts })
  })
  r.post('/clients/:id/amc', requireAuth, requireOwner, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getClient(db, id) === null) { res.status(404).json({ ok: false, error: 'Client not found' }); return }
    try {
      const amc = createAmc(db, staffId(res), { ...(req.body as Omit<CreateAmcInput, 'clientId'>), clientId: id })
      res.json({ ok: true, contract: { ...amc, paidStatus: amcPaidStatus(db, amc) } })
    } catch (err) {
      res.status(400).json({ ok: false, error: err instanceof Error ? err.message : String(err) })
    }
  })
  r.patch('/amc/:id', requireAuth, requireOwner, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getAmc(db, id) === null) { res.status(404).json({ ok: false, error: 'AMC contract not found' }); return }
    try {
      const amc = updateAmc(db, staffId(res), id, req.body as AmcPatch)
      res.json({ ok: true, contract: { ...amc, paidStatus: amcPaidStatus(db, amc) } })
    } catch (err) {
      res.status(400).json({ ok: false, error: err instanceof Error ? err.message : String(err) })
    }
  })
  r.post('/amc/:id/deactivate', requireAuth, requireOwner, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getAmc(db, id) === null) { res.status(404).json({ ok: false, error: 'AMC contract not found' }); return }
    const amc = deactivateAmc(db, staffId(res), id)
    res.json({ ok: true, contract: { ...amc, paidStatus: amcPaidStatus(db, amc) } })
  })
  r.post('/amc/:id/renewal-invoice', requireAuth, requireOwner, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getAmc(db, id) === null) { res.status(404).json({ ok: false, error: 'AMC contract not found' }); return }
    try {
      res.json({ ok: true, document: generateAmcRenewalInvoice(db, staffId(res), id) })
    } catch (err) {
      res.status(400).json({ ok: false, error: err instanceof Error ? err.message : String(err) })
    }
  })

• Step 4: Run tests — npx vitest run apps/hq/test/amc.test.ts → PASS (verify the golden 23_600_00 paisa). npm run typecheck → clean.

• Step 5: Commit

git add apps/hq/src/repos-amc.ts apps/hq/src/api.ts apps/hq/test/amc.test.ts
git commit -m "feat(hq): amc contracts with renewal invoice and derived paid state" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"

---

Task 4: Interactions — types, log, follow-ups, routes

Files:

• Create: apps/hq/src/repos-interactions.ts
• Modify: apps/hq/src/api.ts
• Test: apps/hq/test/interactions.test.ts

Interfaces:

• Produces:

  • InteractionType = { code: string; label: string }; listInteractionTypes(db): InteractionType[]; createInteractionType(db, userId, { code, label }): InteractionType (owner-only at the route; the lookup is user-extensible).
  • Interaction = { id: string; clientId: string; typeCode: string; onDate: string; staffId: string; notes: string; outcome: 'positive'|'neutral'|'negative' | null; followUpOn: string | null; createdAt: string }
  • createInteraction(db, userId, input: { clientId; typeCode; onDate; notes?; outcome?; followUpOn? }): Interaction — validates the client exists and typeCode is a known type; staffId is the acting user.
  • listInteractions(db, clientId): Interaction[] (newest first — the timeline).
  • updateInteraction(db, userId, id, patch: { notes?; outcome?; followUpOn? }): Interaction.
  • listOpenFollowUps(db, onOrBefore: string): (Interaction & { clientName: string })[] — interactions whose follow_up_on <= onOrBefore, newest due first (feeds the dashboard + the follow_up reminder rule).

• Routes: GET /api/interaction-types, POST /api/interaction-types (owner), GET /api/clients/:id/interactions, POST /api/clients/:id/interactions, PATCH /api/interactions/:id.

• Step 1: Write the failing test

// apps/hq/test/interactions.test.ts
import { describe, it, expect } from 'vitest'
import { openDb } from '../src/db'
import { seedIfEmpty } from '../src/seed'
import { createClient } from '../src/repos-clients'
import {
  createInteraction, listInteractions, listInteractionTypes, listOpenFollowUps, updateInteraction,
} from '../src/repos-interactions'

describe('interactions', () => {
  it('logs a typed interaction, updates outcome, and surfaces due follow-ups', () => {
    const db = openDb(':memory:'); seedIfEmpty(db)
    expect(listInteractionTypes(db).length).toBeGreaterThanOrEqual(7)
    const c = createClient(db, 'u1', { name: 'Acme', stateCode: '32' })
    const i = createInteraction(db, 'u1', {
      clientId: c.id, typeCode: 'site_visit', onDate: '2026-07-01',
      notes: 'Installed POS; owner wants training', followUpOn: '2026-07-08',
    })
    expect(listInteractions(db, c.id)).toHaveLength(1)
    const up = updateInteraction(db, 'u1', i.id, { outcome: 'positive' })
    expect(up.outcome).toBe('positive')
    expect(listOpenFollowUps(db, '2026-07-10').map((f) => f.id)).toContain(i.id)
    expect(listOpenFollowUps(db, '2026-07-05')).toHaveLength(0) // not yet due
  })
  it('rejects an unknown interaction type', () => {
    const db = openDb(':memory:'); seedIfEmpty(db)
    const c = createClient(db, 'u1', { name: 'X', stateCode: '32' })
    expect(() => createInteraction(db, 'u1', { clientId: c.id, typeCode: 'telepathy', onDate: '2026-07-01' }))
      .toThrow(/type/i)
  })
})

• Step 2: Run to verify FAIL — npx vitest run apps/hq/test/interactions.test.ts → FAIL.

• Step 3: Implement apps/hq/src/repos-interactions.ts

import { uuidv7 } from '@sims/domain'
import { writeAudit } from './audit'
import type { DB } from './db'
import { getClient } from './repos-clients'

/** Interaction log — the "memories into the system" table (D12 plain-repo pattern). */

export interface InteractionType { code: string; label: string }

export function listInteractionTypes(db: DB): InteractionType[] {
  return db.prepare(`SELECT code, label FROM interaction_type ORDER BY label`).all() as InteractionType[]
}

export function createInteractionType(db: DB, userId: string, input: { code: string; label: string }): InteractionType {
  if (input.code.trim() === '' || input.label.trim() === '') throw new Error('code and label are required')
  db.prepare(`INSERT INTO interaction_type (code, label) VALUES (?, ?)`).run(input.code.trim(), input.label.trim())
  writeAudit(db, userId, 'create', 'interaction_type', input.code, undefined, input)
  return { code: input.code.trim(), label: input.label.trim() }
}

export type Outcome = 'positive' | 'neutral' | 'negative'

export interface Interaction {
  id: string; clientId: string; typeCode: string; onDate: string; staffId: string
  notes: string; outcome: Outcome | null; followUpOn: string | null; createdAt: string
}

interface InteractionRow {
  id: string; client_id: string; type_code: string; on_date: string; staff_id: string
  notes: string; outcome: string | null; follow_up_on: string | null; created_at: string
}

function toInteraction(r: InteractionRow): Interaction {
  return {
    id: r.id, clientId: r.client_id, typeCode: r.type_code, onDate: r.on_date, staffId: r.staff_id,
    notes: r.notes, outcome: r.outcome as Outcome | null, followUpOn: r.follow_up_on, createdAt: r.created_at,
  }
}

export function getInteraction(db: DB, id: string): Interaction | null {
  const row = db.prepare(`SELECT * FROM interaction WHERE id=?`).get(id) as InteractionRow | undefined
  return row === undefined ? null : toInteraction(row)
}

export function listInteractions(db: DB, clientId: string): Interaction[] {
  const rows = db.prepare(
    `SELECT * FROM interaction WHERE client_id=? ORDER BY on_date DESC, id DESC`,
  ).all(clientId) as InteractionRow[]
  return rows.map(toInteraction)
}

export interface CreateInteractionInput {
  clientId: string; typeCode: string; onDate: string
  notes?: string; outcome?: Outcome; followUpOn?: string | null
}

const OUTCOMES: Outcome[] = ['positive', 'neutral', 'negative']

export function createInteraction(db: DB, userId: string, input: CreateInteractionInput): Interaction {
  if (getClient(db, input.clientId) === null) throw new Error('Client not found')
  const type = db.prepare(`SELECT code FROM interaction_type WHERE code=?`).get(input.typeCode)
  if (type === undefined) throw new Error(`Unknown interaction type: ${input.typeCode}`)
  if (input.outcome !== undefined && !OUTCOMES.includes(input.outcome)) throw new Error(`Unknown outcome: ${input.outcome}`)
  const id = uuidv7()
  db.prepare(
    `INSERT INTO interaction (id, client_id, type_code, on_date, staff_id, notes, outcome, follow_up_on, created_at)
     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)`,
  ).run(
    id, input.clientId, input.typeCode, input.onDate, userId, input.notes ?? '',
    input.outcome ?? null, input.followUpOn ?? null, new Date().toISOString(),
  )
  const interaction = getInteraction(db, id)!
  writeAudit(db, userId, 'create', 'interaction', id, undefined, interaction)
  return interaction
}

export interface InteractionPatch { notes?: string; outcome?: Outcome | null; followUpOn?: string | null }

export function updateInteraction(db: DB, userId: string, id: string, patch: InteractionPatch): Interaction {
  const before = getInteraction(db, id)
  if (before === null) throw new Error('Interaction not found')
  if (patch.outcome !== undefined && patch.outcome !== null && !OUTCOMES.includes(patch.outcome)) {
    throw new Error(`Unknown outcome: ${patch.outcome}`)
  }
  const sets: string[] = []
  const args: unknown[] = []
  if (patch.notes !== undefined) { sets.push('notes=?'); args.push(patch.notes) }
  if (patch.outcome !== undefined) { sets.push('outcome=?'); args.push(patch.outcome) }
  if (patch.followUpOn !== undefined) { sets.push('follow_up_on=?'); args.push(patch.followUpOn) }
  if (sets.length > 0) {
    args.push(id)
    db.prepare(`UPDATE interaction SET ${sets.join(', ')} WHERE id=?`).run(...args)
  }
  const after = getInteraction(db, id)!
  writeAudit(db, userId, 'update', 'interaction', id, before, after)
  return after
}

/** Interactions with a follow-up date on or before the given date — the follow-ups queue. */
export function listOpenFollowUps(db: DB, onOrBefore: string): (Interaction & { clientName: string })[] {
  const rows = db.prepare(
    `SELECT i.*, c.name AS client_name FROM interaction i JOIN client c ON c.id = i.client_id
     WHERE i.follow_up_on IS NOT NULL AND i.follow_up_on <= ?
     ORDER BY i.follow_up_on DESC, i.id DESC`,
  ).all(onOrBefore) as (InteractionRow & { client_name: string })[]
  return rows.map((r) => ({ ...toInteraction(r), clientName: r.client_name }))
}

Wire routes in api.ts (import + block; type-create owner-gated, logging is staff-allowed):

import {
  createInteraction, createInteractionType, getInteraction, listInteractions,
  listInteractionTypes, updateInteraction, type CreateInteractionInput, type InteractionPatch,
} from './repos-interactions'

  // ---------- interactions ----------
  r.get('/interaction-types', requireAuth, (_req, res) => {
    res.json({ ok: true, types: listInteractionTypes(db) })
  })
  r.post('/interaction-types', requireAuth, requireOwner, (req, res) => {
    try {
      const type = createInteractionType(db, staffId(res), req.body as { code: string; label: string })
      res.json({ ok: true, type })
    } catch (err) {
      res.status(400).json({ ok: false, error: err instanceof Error ? err.message : String(err) })
    }
  })
  r.get('/clients/:id/interactions', requireAuth, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getClient(db, id) === null) { res.status(404).json({ ok: false, error: 'Client not found' }); return }
    res.json({ ok: true, interactions: listInteractions(db, id) })
  })
  r.post('/clients/:id/interactions', requireAuth, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getClient(db, id) === null) { res.status(404).json({ ok: false, error: 'Client not found' }); return }
    try {
      const interaction = createInteraction(db, staffId(res), {
        ...(req.body as Omit<CreateInteractionInput, 'clientId'>), clientId: id,
      })
      res.json({ ok: true, interaction })
    } catch (err) {
      res.status(400).json({ ok: false, error: err instanceof Error ? err.message : String(err) })
    }
  })
  r.patch('/interactions/:id', requireAuth, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getInteraction(db, id) === null) { res.status(404).json({ ok: false, error: 'Interaction not found' }); return }
    try {
      res.json({ ok: true, interaction: updateInteraction(db, staffId(res), id, req.body as InteractionPatch) })
    } catch (err) {
      res.status(400).json({ ok: false, error: err instanceof Error ? err.message : String(err) })
    }
  })

• Step 4: Run tests — npx vitest run apps/hq/test/interactions.test.ts → PASS. npm run typecheck → clean.

• Step 5: Commit

git add apps/hq/src/repos-interactions.ts apps/hq/src/api.ts apps/hq/test/interactions.test.ts
git commit -m "feat(hq): interaction log with types, follow-ups and routes" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"

---

Task 5: Reminder templates + reminder repo (idempotent upsert, list, dismiss, settings)

Files:

• Create: apps/hq/src/reminder-templates.ts, apps/hq/src/repos-reminders.ts
• Test: apps/hq/test/reminders.test.ts

Interfaces:

• reminder-templates.ts produces:

  • ReminderRuleKind = 'invoice_overdue'|'renewal_due'|'amc_expiring'|'follow_up'|'recurring_generated'|'email_bounced'
  • ReminderContext = { clientName; companyName; docNo?; amountPaise?; dueDate?; daysOverdue?; coverage?; period? }
  • reminderEmail(kind, ctx): { subject: string; bodyText: string } — polite Indian business English, amounts via formatINR. follow_up/email_bounced are internal (not client-facing) and return a neutral placeholder; repos-reminders refuses to email those kinds.

• repos-reminders.ts produces:

  • Reminder = { id; ruleKind; subjectId; duePeriod; clientId; docId: string | null; status: 'queued'|'sent'|'failed'|'dismissed'; policyApplied: 'auto'|'manual'; error: string | null; createdAt; sentAt: string | null }
  • upsertReminder(db, input: { ruleKind; subjectId; duePeriod; clientId; docId?: string | null; policyApplied?: 'auto'|'manual'; now?: string }): { id: string; created: boolean } — INSERT OR IGNORE on the idempotency key; returns the existing row's id (and created:false) when the key already exists. Writes an audit row only when a row is actually created.
  • getReminder(db, id): Reminder | null; listReminders(db, filter?: { status?; ruleKind?; clientId? }): Reminder[]; listQueue(db): Reminder[] — status IN ('queued','failed'), newest first (the manual queue).
  • setReminderStatus(db, userId, id, status, opts?: { error?: string | null; sentAt?: string | null }): Reminder — audited.
  • dismissReminder(db, userId, id): Reminder — sets status='dismissed' (guard: cannot dismiss an already-sent reminder).
  • Settings helpers (used across scheduler/bounces): getSetting(db, key): string | null; setSetting(db, userId, key, value): void (upsert + audit); getNumberSetting(db, key, fallback): number.

• Step 1: Write the failing test

// apps/hq/test/reminders.test.ts
import { describe, it, expect } from 'vitest'
import { openDb } from '../src/db'
import { reminderEmail } from '../src/reminder-templates'
import {
  upsertReminder, listQueue, dismissReminder, setReminderStatus, getReminder,
  getNumberSetting, setSetting,
} from '../src/repos-reminders'

describe('reminder templates', () => {
  it('renders an overdue dunning email with the amount and a polite tone', () => {
    const mail = reminderEmail('invoice_overdue', {
      clientName: 'Malabar Stores', companyName: 'SiMS',
      docNo: 'INV/26-27-0007', amountPaise: 11_800_00, daysOverdue: 12,
    })
    expect(mail.subject).toContain('INV/26-27-0007')
    expect(mail.bodyText).toContain('₹11,800.00')
    expect(mail.bodyText).toContain('12 day')
  })
})

describe('reminder repo', () => {
  it('is idempotent on (rule_kind, subject_id, due_period)', () => {
    const db = openDb(':memory:')
    const a = upsertReminder(db, { ruleKind: 'invoice_overdue', subjectId: 'inv1', duePeriod: '2026-07', clientId: 'c1', docId: 'inv1', now: '2026-07-10T00:00:00Z' })
    expect(a.created).toBe(true)
    const b = upsertReminder(db, { ruleKind: 'invoice_overdue', subjectId: 'inv1', duePeriod: '2026-07', clientId: 'c1', docId: 'inv1', now: '2026-07-10T06:00:00Z' })
    expect(b.created).toBe(false)
    expect(b.id).toBe(a.id) // same row returned, not a duplicate
    expect(listQueue(db)).toHaveLength(1)
    expect(db.prepare(`SELECT COUNT(*) AS n FROM audit_log WHERE entity='reminder'`).get()).toMatchObject({ n: 1 })
  })
  it('transitions and dismisses, refusing to dismiss a sent reminder', () => {
    const db = openDb(':memory:')
    const { id } = upsertReminder(db, { ruleKind: 'follow_up', subjectId: 'i1', duePeriod: '2026-07-08', clientId: 'c1', now: '2026-07-10T00:00:00Z' })
    const dismissed = dismissReminder(db, 'u1', id)
    expect(dismissed.status).toBe('dismissed')
    const { id: id2 } = upsertReminder(db, { ruleKind: 'invoice_overdue', subjectId: 'inv2', duePeriod: '2026-07', clientId: 'c1', docId: 'inv2', now: '2026-07-10T00:00:00Z' })
    setReminderStatus(db, 'u1', id2, 'sent', { sentAt: '2026-07-10T09:00:00Z' })
    expect(getReminder(db, id2)!.status).toBe('sent')
    expect(() => dismissReminder(db, 'u1', id2)).toThrow(/sent/i)
  })
  it('reads number settings with a fallback', () => {
    const db = openDb(':memory:')
    expect(getNumberSetting(db, 'reminders.overdue_days', 7)).toBe(7)
    setSetting(db, 'u1', 'reminders.overdue_days', '10')
    expect(getNumberSetting(db, 'reminders.overdue_days', 7)).toBe(10)
  })
})

• Step 2: Run to verify FAIL — npx vitest run apps/hq/test/reminders.test.ts → FAIL.

• Step 3: Implement apps/hq/src/reminder-templates.ts

import { formatINR } from '@sims/domain'

/** Templated reminder emails — one place so WhatsApp can reuse them later (spec §7). */

export type ReminderRuleKind =
  | 'invoice_overdue' | 'renewal_due' | 'amc_expiring'
  | 'follow_up' | 'recurring_generated' | 'email_bounced'

export interface ReminderContext {
  clientName: string; companyName: string
  docNo?: string; amountPaise?: number; dueDate?: string
  daysOverdue?: number; coverage?: string; period?: string
}

export interface ReminderMail { subject: string; bodyText: string }

const signOff = (ctx: ReminderContext): string => `Warm regards,\n${ctx.companyName}`

export function reminderEmail(kind: ReminderRuleKind, ctx: ReminderContext): ReminderMail {
  switch (kind) {
    case 'invoice_overdue': {
      const amt = ctx.amountPaise !== undefined ? formatINR(ctx.amountPaise) : ''
      return {
        subject: `Payment reminder — Invoice ${ctx.docNo} (${ctx.companyName})`,
        bodyText:
          `Dear ${ctx.clientName},\n\n`
          + `This is a gentle reminder that Invoice ${ctx.docNo}${amt !== '' ? ` for ${amt}` : ''} is outstanding`
          + (ctx.daysOverdue !== undefined ? ` and is now ${ctx.daysOverdue} day(s) past due` : '')
          + `. We would be grateful if you could arrange payment at your earliest convenience.\n\n`
          + `If payment has already been made, kindly ignore this message.\n\n`
          + signOff(ctx),
      }
    }
    case 'recurring_generated': {
      const amt = ctx.amountPaise !== undefined ? formatINR(ctx.amountPaise) : ''
      const forPeriod = ctx.period !== undefined ? ` for ${ctx.period}` : ''
      return {
        subject: `Invoice ${ctx.docNo}${forPeriod} (${ctx.companyName})`,
        bodyText:
          `Dear ${ctx.clientName},\n\n`
          + `Please find attached Invoice ${ctx.docNo}${forPeriod}${amt !== '' ? `, amounting to ${amt}` : ''}.\n\n`
          + `Kindly arrange payment as per the agreed terms. Thank you for your continued association.\n\n`
          + signOff(ctx),
      }
    }
    case 'renewal_due':
      return {
        subject: `Subscription renewal reminder (${ctx.companyName})`,
        bodyText:
          `Dear ${ctx.clientName},\n\n`
          + `Your subscription is due for renewal${ctx.dueDate !== undefined ? ` on ${ctx.dueDate}` : ' shortly'}. `
          + `Please let us know if you would like us to raise the renewal invoice.\n\n`
          + `We value your continued association and look forward to serving you.\n\n`
          + signOff(ctx),
      }
    case 'amc_expiring':
      return {
        subject: `AMC renewal reminder${ctx.coverage !== undefined && ctx.coverage !== '' ? ` — ${ctx.coverage}` : ''} (${ctx.companyName})`,
        bodyText:
          `Dear ${ctx.clientName},\n\n`
          + `Your Annual Maintenance Contract${ctx.coverage !== undefined && ctx.coverage !== '' ? ` (${ctx.coverage})` : ''} `
          + `is due to expire${ctx.dueDate !== undefined ? ` on ${ctx.dueDate}` : ' soon'}. `
          + `To ensure uninterrupted support, please confirm the renewal at your convenience.\n\n`
          + signOff(ctx),
      }
    case 'follow_up':
    case 'email_bounced':
      // Internal dashboard items — never emailed to the client. A neutral value
      // exists so callers can't crash; repos-reminders refuses to send these kinds.
      return { subject: '(internal reminder)', bodyText: '' }
  }
}

Implement apps/hq/src/repos-reminders.ts:

import { uuidv7 } from '@sims/domain'
import { writeAudit } from './audit'
import type { DB } from './db'
import type { ReminderRuleKind } from './reminder-templates'

/** Reminder rows + settings helpers (D12 plain-repo pattern). The UNIQUE key
 *  (rule_kind, subject_id, due_period) is the whole idempotency story — every
 *  create goes through INSERT OR IGNORE, so catch-up after downtime is safe. */

export type ReminderStatus = 'queued' | 'sent' | 'failed' | 'dismissed'

export interface Reminder {
  id: string; ruleKind: ReminderRuleKind; subjectId: string; duePeriod: string
  clientId: string; docId: string | null; status: ReminderStatus
  policyApplied: 'auto' | 'manual'; error: string | null; createdAt: string; sentAt: string | null
}

interface ReminderRow {
  id: string; rule_kind: string; subject_id: string; due_period: string; client_id: string
  doc_id: string | null; status: string; policy_applied: string; error: string | null
  created_at: string; sent_at: string | null
}

function toReminder(r: ReminderRow): Reminder {
  return {
    id: r.id, ruleKind: r.rule_kind as ReminderRuleKind, subjectId: r.subject_id,
    duePeriod: r.due_period, clientId: r.client_id, docId: r.doc_id,
    status: r.status as ReminderStatus, policyApplied: r.policy_applied as 'auto' | 'manual',
    error: r.error, createdAt: r.created_at, sentAt: r.sent_at,
  }
}

export function getReminder(db: DB, id: string): Reminder | null {
  const row = db.prepare(`SELECT * FROM reminder WHERE id=?`).get(id) as ReminderRow | undefined
  return row === undefined ? null : toReminder(row)
}

export interface UpsertReminderInput {
  ruleKind: ReminderRuleKind; subjectId: string; duePeriod: string; clientId: string
  docId?: string | null; policyApplied?: 'auto' | 'manual'; now?: string
}

/** Create the reminder for a (rule, subject, period) exactly once. Returns the
 *  existing row's id with created:false when the key is already present. */
export function upsertReminder(db: DB, input: UpsertReminderInput): { id: string; created: boolean } {
  const id = uuidv7()
  const now = input.now ?? new Date().toISOString()
  const res = db.prepare(
    // Portability quirk: INSERT OR IGNORE is SQLite/Postgres dialect (standard SQL has MERGE).
    `INSERT OR IGNORE INTO reminder
       (id, rule_kind, subject_id, due_period, client_id, doc_id, status, policy_applied, error, created_at, sent_at)
     VALUES (?, ?, ?, ?, ?, ?, 'queued', ?, NULL, ?, NULL)`,
  ).run(
    id, input.ruleKind, input.subjectId, input.duePeriod, input.clientId,
    input.docId ?? null, input.policyApplied ?? 'manual', now,
  )
  if (res.changes === 1) {
    writeAudit(db, 'system', 'create', 'reminder', id, undefined, {
      ruleKind: input.ruleKind, subjectId: input.subjectId, duePeriod: input.duePeriod,
    })
    return { id, created: true }
  }
  const existing = db.prepare(
    `SELECT id FROM reminder WHERE rule_kind=? AND subject_id=? AND due_period=?`,
  ).get(input.ruleKind, input.subjectId, input.duePeriod) as { id: string }
  return { id: existing.id, created: false }
}

export interface ReminderFilter { status?: ReminderStatus; ruleKind?: ReminderRuleKind; clientId?: string }

export function listReminders(db: DB, filter: ReminderFilter = {}): Reminder[] {
  let sql = `SELECT * FROM reminder WHERE 1=1`
  const args: unknown[] = []
  if (filter.status !== undefined) { sql += ` AND status=?`; args.push(filter.status) }
  if (filter.ruleKind !== undefined) { sql += ` AND rule_kind=?`; args.push(filter.ruleKind) }
  if (filter.clientId !== undefined) { sql += ` AND client_id=?`; args.push(filter.clientId) }
  sql += ` ORDER BY id DESC`
  return (db.prepare(sql).all(...args) as ReminderRow[]).map(toReminder)
}

/** The manual queue: everything awaiting a human — queued items and failed sends. */
export function listQueue(db: DB): Reminder[] {
  return (db.prepare(
    `SELECT * FROM reminder WHERE status IN ('queued','failed') ORDER BY id DESC`,
  ).all() as ReminderRow[]).map(toReminder)
}

export function setReminderStatus(
  db: DB, userId: string, id: string, status: ReminderStatus,
  opts: { error?: string | null; sentAt?: string | null } = {},
): Reminder {
  const before = getReminder(db, id)
  if (before === null) throw new Error('Reminder not found')
  db.prepare(`UPDATE reminder SET status=?, error=?, sent_at=? WHERE id=?`).run(
    status,
    opts.error !== undefined ? opts.error : before.error,
    opts.sentAt !== undefined ? opts.sentAt : before.sentAt,
    id,
  )
  const after = getReminder(db, id)!
  writeAudit(db, userId, 'update', 'reminder', id, { status: before.status }, { status: after.status, error: after.error })
  return after
}

export function dismissReminder(db: DB, userId: string, id: string): Reminder {
  const before = getReminder(db, id)
  if (before === null) throw new Error('Reminder not found')
  if (before.status === 'sent') throw new Error('Cannot dismiss a reminder that was already sent')
  return setReminderStatus(db, userId, id, 'dismissed')
}

// ---------- settings helpers (shared by scheduler + bounce poller) ----------

export function getSetting(db: DB, key: string): string | null {
  const row = db.prepare(`SELECT value FROM setting WHERE key=?`).get(key) as { value: string } | undefined
  return row === undefined ? null : row.value
}

export function setSetting(db: DB, userId: string, key: string, value: string): void {
  const before = getSetting(db, key)
  db.prepare(
    // Portability quirk: ON CONFLICT upsert is SQLite/Postgres dialect (standard SQL has MERGE).
    `INSERT INTO setting (key, value) VALUES (?, ?) ON CONFLICT (key) DO UPDATE SET value = excluded.value`,
  ).run(key, value)
  writeAudit(db, userId, before === null ? 'create' : 'update', 'setting', key, before === null ? undefined : { value: before }, { value })
}

export function getNumberSetting(db: DB, key: string, fallback: number): number {
  const raw = getSetting(db, key)
  if (raw === null) return fallback
  const n = Number(raw)
  return Number.isFinite(n) ? n : fallback
}

• Step 4: Run tests — npx vitest run apps/hq/test/reminders.test.ts → PASS. npm run typecheck → clean.

• Step 5: Commit

git add apps/hq/src/reminder-templates.ts apps/hq/src/repos-reminders.ts apps/hq/test/reminders.test.ts
git commit -m "feat(hq): reminder templates and idempotent reminder repo" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"

---

Task 6: Reminder sending — sendReminderEmail (gmail) + sendReminder orchestration + routes

Files:

• Modify: apps/hq/src/gmail.ts (add sendReminderEmail — attachment-optional, no document coupling)
• Create: apps/hq/src/send-reminder.ts (orchestration: build context + optional PDF + send + status update)
• Modify: apps/hq/src/api.ts (reminder routes)
• Test: apps/hq/test/send-reminder.test.ts

Interfaces:

• gmail.ts adds (reusing the module-private SEND_URL and the existing getAccount/getAccessToken/buildMime/decrypt/logEmail/markAccountDead/TokenDeadError; no change to sendDocumentEmail):

  • interface ReminderMailInput { to: string; subject: string; bodyText: string; attachment?: { filename: string; data: Buffer }; documentId?: string }
  • sendReminderEmail(db, deps: GmailDeps, args: ReminderMailInput): Promise<SendResult> — same token-death handling as sendDocumentEmail (markAccountDead + { ok:false, error:'gmail-token-dead' }), logs email_log (document_id = args.documentId ?? null), but never touches document status. Missing account → logs failed, returns { ok:false, error:'gmail-not-connected' }.

• send-reminder.ts produces:

  • interface SendReminderDeps { gmail: GmailDeps; renderPdf: (html: string) => Promise<Buffer>; company: () => Record<string, string>; now?: () => string }
  • sendReminder(db, deps, reminderId, userId): Promise<SendResult> — loads the reminder; refuses follow_up/email_bounced (throw "not a sendable reminder"); builds ReminderContext from the subject (doc for overdue/recurring, client_module for renewal, amc for amc_expiring); if reminder.docId present renders that document's PDF (documentHtml + deps.renderPdf) as the attachment; resolves to = the client's first contact email (throws if none); calls sendReminderEmail; on ok sets reminder sent + sentAt, on failure sets failed + error; returns the SendResult.

• Routes: GET /api/reminders?status= (list; default the queue), POST /api/reminders/:id/send, POST /api/reminders/:id/dismiss — all requireAuth.

• Step 1: Write the failing test (fetch + renderPdf both injected — offline, Chromium-free)

// apps/hq/test/send-reminder.test.ts
import { describe, it, expect } from 'vitest'
import { openDb } from '../src/db'
import { seedIfEmpty } from '../src/seed'
import { createClient } from '../src/repos-clients'
import { createModule, setPrice } from '../src/repos-modules'
import { createDraft, issueDocument } from '../src/repos-documents'
import { saveAccount } from '../src/repos-email'
import { encrypt } from '../src/crypto'
import { upsertReminder, getReminder } from '../src/repos-reminders'
import { sendReminder, type SendReminderDeps } from '../src/send-reminder'

const KEY = '11'.repeat(32)
const fakePdf = async () => Buffer.from('%PDF-fake')
const company = () => ({ 'company.name': 'SiMS' })

function deps(f: typeof fetch): SendReminderDeps {
  return { gmail: { f, clientId: 'cid', clientSecret: 'sec', keyHex: KEY }, renderPdf: fakePdf, company, now: () => '2026-07-10T09:00:00Z' }
}

function invoiceSetup() {
  const db = openDb(':memory:'); seedIfEmpty(db)
  saveAccount(db, 'us@sims.com', encrypt('refresh-token', KEY))
  const c = createClient(db, 'u1', { name: 'Acme', stateCode: '32', contacts: [{ name: 'Ravi', email: 'ravi@acme.in' }] })
  const m = createModule(db, 'u1', { code: 'POS', name: 'POS' })
  setPrice(db, 'u1', { moduleId: m.id, kind: 'yearly', pricePaise: 10_000_00, effectiveFrom: '2026-04-01' })
  const inv = issueDocument(db, 'u1', createDraft(db, 'u1', { docType: 'INVOICE', clientId: c.id, lines: [{ moduleId: m.id, qty: 1, kind: 'yearly' }] }).id)
  return { db, c, inv }
}

describe('sendReminder', () => {
  it('sends an overdue reminder with the invoice PDF and marks it sent', async () => {
    const { db, c, inv } = invoiceSetup()
    const { id } = upsertReminder(db, { ruleKind: 'invoice_overdue', subjectId: inv.id, duePeriod: '2026-07', clientId: c.id, docId: inv.id, now: '2026-07-10T00:00:00Z' })
    const okFetch = (async (url: string) =>
      new Response(JSON.stringify(String(url).includes('/token') ? { access_token: 'at' } : { id: 'gmsg-1' }), { status: 200 })) as typeof fetch
    const out = await sendReminder(db, deps(okFetch), id, 'u1')
    expect(out).toEqual({ ok: true })
    expect(getReminder(db, id)!.status).toBe('sent')
    expect(getReminder(db, id)!.sentAt).toBe('2026-07-10T09:00:00Z')
    const log = db.prepare(`SELECT status, document_id FROM email_log ORDER BY id DESC`).get() as { status: string; document_id: string }
    expect(log).toMatchObject({ status: 'sent', document_id: inv.id })
  })
  it('leaves the reminder failed (not sent) on token death, and flips the account dead', async () => {
    const { db, c, inv } = invoiceSetup()
    const { id } = upsertReminder(db, { ruleKind: 'invoice_overdue', subjectId: inv.id, duePeriod: '2026-07', clientId: c.id, docId: inv.id, now: '2026-07-10T00:00:00Z' })
    const deadFetch = (async () => new Response(JSON.stringify({ error: 'invalid_grant' }), { status: 400 })) as typeof fetch
    const out = await sendReminder(db, deps(deadFetch), id, 'u1')
    expect(out).toEqual({ ok: false, error: 'gmail-token-dead' })
    expect(getReminder(db, id)!.status).toBe('failed')
    expect(db.prepare(`SELECT status FROM email_account`).get()).toMatchObject({ status: 'dead' })
  })
  it('refuses to email an internal follow_up reminder', async () => {
    const { db, c } = invoiceSetup()
    const { id } = upsertReminder(db, { ruleKind: 'follow_up', subjectId: 'i1', duePeriod: '2026-07-08', clientId: c.id, now: '2026-07-10T00:00:00Z' })
    const noFetch = (async () => new Response('{}', { status: 200 })) as typeof fetch
    await expect(sendReminder(db, deps(noFetch), id, 'u1')).rejects.toThrow(/sendable/i)
  })
})

• Step 2: Run to verify FAIL — npx vitest run apps/hq/test/send-reminder.test.ts → FAIL.

• Step 3: Implement. Append to apps/hq/src/gmail.ts (after sendDocumentEmail; reuses everything already imported in the file):

export interface ReminderMailInput {
  to: string; subject: string; bodyText: string
  attachment?: { filename: string; data: Buffer }
  documentId?: string
}

/**
 * Send a templated reminder — attachment optional, no document-status side effects.
 * Mirrors sendDocumentEmail's account/token-death handling and logs every attempt,
 * so the dashboard banner and email_log stay consistent across both send paths.
 */
export async function sendReminderEmail(
  db: DB, deps: GmailDeps, args: ReminderMailInput,
): Promise<SendResult> {
  const logFail = (error: string): SendResult => {
    logEmail(db, {
      ...(args.documentId !== undefined ? { documentId: args.documentId } : {}),
      to: args.to, subject: args.subject, status: 'failed', error,
    })
    return { ok: false, error }
  }
  const account = getAccount(db)
  if (account === null) return logFail('gmail-not-connected')
  if (account.status === 'dead') return logFail('gmail-token-dead')

  let accessToken: string
  try {
    const refreshToken = decrypt(account.refreshTokenEnc, deps.keyHex)
    accessToken = await getAccessToken(refreshToken, deps.clientId, deps.clientSecret, deps.f)
  } catch (err) {
    if (err instanceof TokenDeadError) { markAccountDead(db); return logFail('gmail-token-dead') }
    return logFail(err instanceof Error ? err.message : String(err))
  }

  const raw = buildMime({
    from: account.address, to: args.to, subject: args.subject, bodyText: args.bodyText,
    ...(args.attachment !== undefined
      ? { attachment: { filename: args.attachment.filename, contentType: 'application/pdf', data: args.attachment.data } }
      : {}),
  })
  let gmailMessageId: string | undefined
  try {
    const res = await deps.f(SEND_URL, {
      method: 'POST',
      headers: { authorization: `Bearer ${accessToken}`, 'content-type': 'application/json' },
      body: JSON.stringify({ raw }),
    })
    const json = await res.json().catch(() => ({})) as { id?: string }
    if (!res.ok) return logFail(`Gmail send failed: HTTP ${res.status}`)
    gmailMessageId = json.id
  } catch (err) {
    return logFail(err instanceof Error ? err.message : String(err))
  }

  logEmail(db, {
    ...(args.documentId !== undefined ? { documentId: args.documentId } : {}),
    to: args.to, subject: args.subject, status: 'sent',
    ...(gmailMessageId !== undefined ? { gmailMessageId } : {}),
  })
  return { ok: true }
}

Implement apps/hq/src/send-reminder.ts:

import type { DB } from './db'
import type { GmailDeps, SendResult } from './gmail'
import { sendReminderEmail } from './gmail'
import { getClient } from './repos-clients'
import { getClientModule } from './repos-modules'
import { getDocument } from './repos-documents'
import { getAmc } from './repos-amc'
import { getReminder, setReminderStatus } from './repos-reminders'
import { reminderEmail, type ReminderContext } from './reminder-templates'
import { documentHtml } from './templates'

/** Turn a queued/failed reminder into an actual email — used by the manual-queue
 *  Send button and by the scheduler's auto path. Reuses gmail.sendReminderEmail. */

export interface SendReminderDeps {
  gmail: GmailDeps
  renderPdf: (html: string) => Promise<Buffer>
  company: () => Record<string, string>
  now?: () => string
}

export async function sendReminder(
  db: DB, deps: SendReminderDeps, reminderId: string, userId: string,
): Promise<SendResult> {
  const reminder = getReminder(db, reminderId)
  if (reminder === null) throw new Error('Reminder not found')
  if (reminder.ruleKind === 'follow_up' || reminder.ruleKind === 'email_bounced') {
    throw new Error(`A ${reminder.ruleKind} reminder is an internal item, not a sendable email`)
  }
  const client = getClient(db, reminder.clientId)
  if (client === null) throw new Error('Client not found')
  const company = deps.company()
  const companyName = company['company.name'] ?? ''

  // Build the per-rule context.
  const ctx: ReminderContext = { clientName: client.name, companyName }
  let attachment: { filename: string; data: Buffer } | undefined
  let documentId: string | undefined
  if (reminder.docId !== null) {
    const doc = getDocument(db, reminder.docId)
    if (doc === null) throw new Error('Reminder document not found')
    documentId = doc.id
    ctx.docNo = doc.docNo ?? undefined
    ctx.amountPaise = doc.payablePaise
    ctx.period = reminder.duePeriod
    const pdf = await deps.renderPdf(documentHtml(doc, client, company))
    attachment = { filename: `${(doc.docNo ?? 'draft').replaceAll('/', '-')}.pdf`, data: pdf }
  } else if (reminder.ruleKind === 'renewal_due') {
    const cm = getClientModule(db, reminder.subjectId)
    if (cm !== null && cm.nextRenewal !== null) ctx.dueDate = cm.nextRenewal
  } else if (reminder.ruleKind === 'amc_expiring') {
    const amc = getAmc(db, reminder.subjectId)
    if (amc !== null) { ctx.coverage = amc.coverage; ctx.dueDate = amc.periodTo }
  }

  const to = client.contacts.find((c) => c.email !== undefined && c.email !== '')?.email
  if (to === undefined) throw new Error('No recipient: add a contact email to the client')

  const mail = reminderEmail(reminder.ruleKind, ctx)
  const out = await sendReminderEmail(db, deps.gmail, {
    to, subject: mail.subject, bodyText: mail.bodyText,
    ...(attachment !== undefined ? { attachment } : {}),
    ...(documentId !== undefined ? { documentId } : {}),
  })
  const now = deps.now?.() ?? new Date().toISOString()
  if (out.ok) setReminderStatus(db, userId, reminderId, 'sent', { sentAt: now, error: null })
  else setReminderStatus(db, userId, reminderId, 'failed', { error: out.error })
  return out
}

Wire routes in api.ts (imports + block). sendReminderDeps() is built at request time so gmail-connect works without a restart, exactly like the existing gmail() helper:

import {
  dismissReminder, getReminder, listQueue, listReminders,
  type ReminderStatus,
} from './repos-reminders'
import { sendReminder, type SendReminderDeps } from './send-reminder'

  const sendReminderDeps = (): SendReminderDeps => ({
    gmail: gmail(), renderPdf, company: companySettings,
  })

  // ---------- reminders (manual queue) ----------
  r.get('/reminders', requireAuth, (req, res) => {
    const status = typeof req.query['status'] === 'string' ? req.query['status'] as ReminderStatus : undefined
    res.json({ ok: true, reminders: status !== undefined ? listReminders(db, { status }) : listQueue(db) })
  })
  r.post('/reminders/:id/send', requireAuth, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getReminder(db, id) === null) { res.status(404).json({ ok: false, error: 'Reminder not found' }); return }
    void (async () => {
      try {
        const out = await sendReminder(db, sendReminderDeps(), id, staffId(res))
        if (!out.ok) {
          res.status(out.error === 'gmail-token-dead' ? 409 : 502).json({ ok: false, error: out.error })
          return
        }
        res.json({ ok: true, reminder: getReminder(db, id) })
      } catch (err) {
        res.status(400).json({ ok: false, error: err instanceof Error ? err.message : String(err) })
      }
    })()
  })
  r.post('/reminders/:id/dismiss', requireAuth, (req, res) => {
    const id = String(req.params['id'] ?? '')
    if (getReminder(db, id) === null) { res.status(404).json({ ok: false, error: 'Reminder not found' }); return }
    try {
      res.json({ ok: true, reminder: dismissReminder(db, staffId(res), id) })
    } catch (err) {
      res.status(400).json({ ok: false, error: err instanceof Error ? err.message : String(err) })
    }
  })

(renderPdf and documentHtml are already imported in api.ts from HQ-1; reuse those imports.)

• Step 4: Run tests — npx vitest run apps/hq/test/send-reminder.test.ts → PASS. Full suite npm test green. npm run typecheck → clean.

• Step 5: Commit

git add apps/hq/src/gmail.ts apps/hq/src/send-reminder.ts apps/hq/src/api.ts apps/hq/test/send-reminder.test.ts
git commit -m "feat(hq): reminder email send reusing gmail, plus manual-queue routes" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"

---

Task 7: Scheduler A — runDailyScan detection rules (overdue / renewal / amc / follow-up)

Files:

• Modify: apps/hq/src/repos-payments.ts (export outstandingPaise)
• Create: apps/hq/src/scheduler.ts (runDailyScan — pure, injectable today; recurring generation is added in Task 8)
• Test: apps/hq/test/scheduler-scan.test.ts

Interfaces:

• repos-payments.ts adds: outstandingPaise(db, docId: string): number — thin exported wrapper over the existing private outstandingOf(db, doc) (payable − allocations − non-cancelled credit notes).

• scheduler.ts produces:

  • interface ScanDeps extends SendReminderDeps {} (reuses SendReminderDeps from send-reminder.ts — gmail, renderPdf, company, now?).
  • interface ScanResult { today: string; created: Record<string, number>; autoSent: number; autoFailed: number }
  • runDailyScan(db, deps, today: string): Promise<ScanResult> — pure w.r.t. the clock: today is the business date (YYYY-MM-DD); wall-clock stamps come from deps.now. In this task it creates queued reminders for four rules (all policy_applied='manual' — the dunning/renewal/amc/follow-up rules land in the manual queue by design; the only auto path is recurring, Task 8):
    • invoice_overdue — issued INVOICEs, status NOT IN ('paid','cancelled','lost'), doc_date <= today − reminders.overdue_days, outstandingPaise > 0. due_period = today[0:7] (month bucket → at most one dunning per invoice per month). subject_id = doc_id = invoice id.
    • renewal_due — client_module active=1, next_renewal within [today, today + reminders.renewal_days]. due_period = next_renewal. subject_id = client_module id.
    • amc_expiring — amc_contract active=1, period_to within [today, today + renewal_reminder_days] (per-contract). due_period = period_to. subject_id = amc id.
    • follow_up — interaction.follow_up_on <= today. due_period = follow_up_on. subject_id = interaction id.
  • Exported date helper addDaysIso(dateIso: string, days: number): string (used by tests + Task 8/10).

• Step 1: Write the failing test

// apps/hq/test/scheduler-scan.test.ts
import { describe, it, expect } from 'vitest'
import { openDb } from '../src/db'
import { seedIfEmpty } from '../src/seed'
import { createClient } from '../src/repos-clients'
import { assignModule, createModule, setPrice, updateClientModule } from '../src/repos-modules'
import { createDraft, issueDocument } from '../src/repos-documents'
import { createAmc } from '../src/repos-amc'
import { createInteraction } from '../src/repos-interactions'
import { listReminders } from '../src/repos-reminders'
import { runDailyScan, type ScanDeps } from '../src/scheduler'

const deps: ScanDeps = {
  gmail: { f: (async () => new Response('{}')) as typeof fetch, clientId: '', clientSecret: '', keyHex: '' },
  renderPdf: async () => Buffer.from('%PDF-'), company: () => ({ 'company.name': 'SiMS' }),
  now: () => '2026-07-10T00:00:00Z',
}

function world() {
  const db = openDb(':memory:'); seedIfEmpty(db)
  const c = createClient(db, 'u1', { name: 'Acme', stateCode: '32', contacts: [{ name: 'R', email: 'r@acme.in' }] })
  const m = createModule(db, 'u1', { code: 'POS', name: 'POS' })
  setPrice(db, 'u1', { moduleId: m.id, kind: 'yearly', pricePaise: 10_000_00, effectiveFrom: '2026-01-01' })
  return { db, c, m }
}

describe('runDailyScan — detection rules', () => {
  it('raises overdue, renewal, amc and follow-up reminders, and is idempotent', async () => {
    const { db, c, m } = world()
    // Overdue invoice: issued 2026-06-01, unpaid, > 7 days before 2026-07-10.
    const inv = issueDocument(db, 'u1', createDraft(db, 'u1', { docType: 'INVOICE', clientId: c.id, lines: [{ moduleId: m.id, qty: 1, kind: 'yearly' }] }).id)
    db.prepare(`UPDATE document SET doc_date='2026-06-01' WHERE id=?`).run(inv.id)
    // Renewal within 15 days.
    const cm = assignModule(db, 'u1', { clientId: c.id, moduleId: m.id, kind: 'yearly' })
    updateClientModule(db, 'u1', cm.id, { nextRenewal: '2026-07-20' })
    // AMC expiring within 30 days.
    createAmc(db, 'u1', { clientId: c.id, coverage: 'Support', periodFrom: '2025-08-01', periodTo: '2026-08-01', amountPaise: 20_000_00 })
    // Follow-up due.
    createInteraction(db, 'u1', { clientId: c.id, typeCode: 'call', onDate: '2026-07-01', followUpOn: '2026-07-09' })

    const res = await runDailyScan(db, deps, '2026-07-10')
    expect(res.created['invoice_overdue']).toBe(1)
    expect(res.created['renewal_due']).toBe(1)
    expect(res.created['amc_expiring']).toBe(1)
    expect(res.created['follow_up']).toBe(1)
    expect(listReminders(db, { status: 'queued' })).toHaveLength(4)

    // Re-run same day → the idempotency key blocks every duplicate.
    const again = await runDailyScan(db, deps, '2026-07-10')
    expect(Object.values(again.created).reduce((a, b) => a + b, 0)).toBe(0)
    expect(listReminders(db, {})).toHaveLength(4)
  })
  it('does not raise a reminder for an invoice that is not yet overdue', async () => {
    const { db, c, m } = world()
    const inv = issueDocument(db, 'u1', createDraft(db, 'u1', { docType: 'INVOICE', clientId: c.id, lines: [{ moduleId: m.id, qty: 1, kind: 'yearly' }] }).id)
    db.prepare(`UPDATE document SET doc_date='2026-07-08' WHERE id=?`).run(inv.id) // only 2 days old
    const res = await runDailyScan(db, deps, '2026-07-10')
    expect(res.created['invoice_overdue'] ?? 0).toBe(0)
  })
})

• Step 2: Run to verify FAIL — npx vitest run apps/hq/test/scheduler-scan.test.ts → FAIL.

• Step 3: Implement. In apps/hq/src/repos-payments.ts add (below outstandingOf):

/** Exported outstanding read for the scheduler and dashboard. */
export function outstandingPaise(db: DB, docId: string): number {
  const doc = getDocument(db, docId)
  return doc === null ? 0 : outstandingOf(db, doc)
}

Create apps/hq/src/scheduler.ts:

import type { DB } from './db'
import { outstandingPaise } from './repos-payments'
import { getNumberSetting, upsertReminder } from './repos-reminders'
import type { SendReminderDeps } from './send-reminder'

/**
 * Daily scan — pure w.r.t. the clock: `today` (YYYY-MM-DD) is injected, so tests
 * are deterministic. Every reminder is created through upsertReminder (INSERT OR
 * IGNORE on the idempotency key), which makes re-runs and catch-up after downtime
 * safe with no extra bookkeeping. Recurring generation + auto-send is added in the
 * next task; this pass covers the four detection rules (all land in the manual queue).
 */

export type ScanDeps = SendReminderDeps

export interface ScanResult {
  today: string
  created: Record<string, number>
  autoSent: number
  autoFailed: number
}

/** ISO date arithmetic on YYYY-MM-DD (UTC), lexical-compare safe. */
export function addDaysIso(dateIso: string, days: number): string {
  const [y, m, d] = dateIso.split('-').map(Number)
  return new Date(Date.UTC(y!, m! - 1, d! + days)).toISOString().slice(0, 10)
}

function bump(created: Record<string, number>, kind: string): void {
  created[kind] = (created[kind] ?? 0) + 1
}

export async function runDailyScan(db: DB, deps: ScanDeps, today: string): Promise<ScanResult> {
  const now = deps.now?.() ?? new Date().toISOString()
  const created: Record<string, number> = {}

  // --- invoice_overdue ---
  const overdueDays = getNumberSetting(db, 'reminders.overdue_days', 7)
  const overdueCutoff = addDaysIso(today, -overdueDays)
  const period = today.slice(0, 7)
  const overdue = db.prepare(
    `SELECT id, client_id FROM document
     WHERE doc_type='INVOICE' AND doc_no IS NOT NULL
       AND status NOT IN ('paid','cancelled','lost') AND doc_date <= ?`,
  ).all(overdueCutoff) as { id: string; client_id: string }[]
  for (const inv of overdue) {
    if (outstandingPaise(db, inv.id) <= 0) continue
    if (upsertReminder(db, { ruleKind: 'invoice_overdue', subjectId: inv.id, duePeriod: period, clientId: inv.client_id, docId: inv.id, now }).created) {
      bump(created, 'invoice_overdue')
    }
  }

  // --- renewal_due ---
  const renewalDays = getNumberSetting(db, 'reminders.renewal_days', 15)
  const renewalHorizon = addDaysIso(today, renewalDays)
  const renewals = db.prepare(
    `SELECT id, client_id, next_renewal FROM client_module
     WHERE active=1 AND next_renewal IS NOT NULL AND next_renewal >= ? AND next_renewal <= ?`,
  ).all(today, renewalHorizon) as { id: string; client_id: string; next_renewal: string }[]
  for (const cm of renewals) {
    if (upsertReminder(db, { ruleKind: 'renewal_due', subjectId: cm.id, duePeriod: cm.next_renewal, clientId: cm.client_id, now }).created) {
      bump(created, 'renewal_due')
    }
  }

  // --- amc_expiring (per-contract window) ---
  const amcs = db.prepare(
    `SELECT id, client_id, period_to, renewal_reminder_days FROM amc_contract WHERE active=1`,
  ).all() as { id: string; client_id: string; period_to: string; renewal_reminder_days: number }[]
  for (const a of amcs) {
    const horizon = addDaysIso(today, a.renewal_reminder_days)
    if (a.period_to < today || a.period_to > horizon) continue
    if (upsertReminder(db, { ruleKind: 'amc_expiring', subjectId: a.id, duePeriod: a.period_to, clientId: a.client_id, now }).created) {
      bump(created, 'amc_expiring')
    }
  }

  // --- follow_up (internal) ---
  const followUps = db.prepare(
    `SELECT id, client_id, follow_up_on FROM interaction
     WHERE follow_up_on IS NOT NULL AND follow_up_on <= ?`,
  ).all(today) as { id: string; client_id: string; follow_up_on: string }[]
  for (const f of followUps) {
    if (upsertReminder(db, { ruleKind: 'follow_up', subjectId: f.id, duePeriod: f.follow_up_on, clientId: f.client_id, now }).created) {
      bump(created, 'follow_up')
    }
  }

  return { today, created, autoSent: 0, autoFailed: 0 }
}

• Step 4: Run tests — npx vitest run apps/hq/test/scheduler-scan.test.ts → PASS. npm run typecheck → clean.

• Step 5: Commit

git add apps/hq/src/repos-payments.ts apps/hq/src/scheduler.ts apps/hq/test/scheduler-scan.test.ts
git commit -m "feat(hq): daily scan detection rules with idempotent reminders" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"

---

Task 8: Scheduler B — recurring invoice generation + auto-send (the §3 semantics)

Files:

• Modify: apps/hq/src/scheduler.ts (add recurring generation + auto-send to runDailyScan)
• Test: apps/hq/test/scheduler-recurring.test.ts

The spec semantics this task nails (read carefully):

• Generation is transactional and atomic: for each due period, one db.transaction claims the period (upsertReminder → INSERT OR IGNORE), generates the DRAFT invoice (createDraft) + issues it (issueDocument), links the invoice onto the reminder (reminder.doc_id), and advances recurring_plan.next_run by exactly one cadence — all-or-nothing. A crash rolls the whole period back.
• next_run advances on generation, not on send (the invoice existing is the spec's condition). The async email send happens after commit and only flips the already-committed reminder queued → sent / queued → failed. A failed send never regenerates and never re-advances — the invoice stays issued and the reminder waits in the manual queue with its error visible; the UNIQUE key forbids a second generation for that period.
• Catch-up after downtime: a while (next_run <= today) loop bills every missed period, each keyed on its own due_period = next_run, so INSERT OR IGNORE makes catch-up exactly-once. A safety cap (240 iterations) guards against a corrupt next_run.
• At-most-once auto-send across crashes: the auto-send runs once per newly-created reminder. If the process dies mid-send, the reminder is left queued (invoice already exists, next_run already advanced) → a human sends it from the queue; the scanner never auto-retries.

Interfaces: no new exports — runDailyScan now also fills created['recurring_generated'], autoSent, autoFailed.

• Step 1: Write the failing test

// apps/hq/test/scheduler-recurring.test.ts
import { describe, it, expect } from 'vitest'
import { openDb } from '../src/db'
import { seedIfEmpty } from '../src/seed'
import { createClient } from '../src/repos-clients'
import { assignModule, createModule, setPrice } from '../src/repos-modules'
import { createRecurringPlan, getRecurringPlan } from '../src/repos-recurring'
import { saveAccount } from '../src/repos-email'
import { encrypt } from '../src/crypto'
import { listDocuments } from '../src/repos-documents'
import { listReminders, getReminder } from '../src/repos-reminders'
import { runDailyScan, type ScanDeps } from '../src/scheduler'

const KEY = '11'.repeat(32)
const okFetch = (async (url: string) =>
  new Response(JSON.stringify(String(url).includes('/token') ? { access_token: 'at' } : { id: 'g1' }), { status: 200 })) as typeof fetch
const deadFetch = (async () => new Response(JSON.stringify({ error: 'invalid_grant' }), { status: 400 })) as typeof fetch

function deps(f: typeof fetch): ScanDeps {
  return { gmail: { f, clientId: 'cid', clientSecret: 'sec', keyHex: KEY }, renderPdf: async () => Buffer.from('%PDF-'), company: () => ({ 'company.name': 'SiMS' }), now: () => '2026-07-10T00:00:00Z' }
}

function world() {
  const db = openDb(':memory:'); seedIfEmpty(db)
  saveAccount(db, 'us@sims.com', encrypt('rt', KEY))
  const c = createClient(db, 'u1', { name: 'Acme', stateCode: '32', contacts: [{ name: 'R', email: 'r@acme.in' }] })
  const m = createModule(db, 'u1', { code: 'CLOUD', name: 'Cloud', allowedKinds: ['monthly'] })
  setPrice(db, 'u1', { moduleId: m.id, kind: 'monthly', pricePaise: 2_000_00, effectiveFrom: '2026-01-01' })
  const cm = assignModule(db, 'u1', { clientId: c.id, moduleId: m.id, kind: 'monthly' })
  return { db, c, m, cm }
}

describe('runDailyScan — recurring generation', () => {
  it('auto plan: generates+issues an invoice, advances next_run one cadence, sends, marks sent', async () => {
    const { db, c, cm } = world()
    const plan = createRecurringPlan(db, 'u1', { clientId: c.id, clientModuleId: cm.id, cadence: 'monthly', nextRun: '2026-07-10', policy: 'auto' })
    const res = await runDailyScan(db, deps(okFetch), '2026-07-10')
    expect(res.created['recurring_generated']).toBe(1)
    expect(res.autoSent).toBe(1)
    const invoices = listDocuments(db, { clientId: c.id, type: 'INVOICE' })
    expect(invoices).toHaveLength(1)
    expect(invoices[0]!.docNo).toMatch(/^INV\//)
    expect(getRecurringPlan(db, plan.id)!.nextRun).toBe('2026-08-10') // advanced exactly one month
    const rem = listReminders(db, { ruleKind: 'recurring_generated' })[0]!
    expect(rem.status).toBe('sent')
    expect(rem.docId).toBe(invoices[0]!.id)
  })
  it('failed send: invoice exists and next_run advanced, reminder is failed (queued for manual), no regeneration on re-run', async () => {
    const { db, c, cm } = world()
    const plan = createRecurringPlan(db, 'u1', { clientId: c.id, clientModuleId: cm.id, cadence: 'monthly', nextRun: '2026-07-10', policy: 'auto' })
    const res = await runDailyScan(db, deps(deadFetch), '2026-07-10')
    expect(res.created['recurring_generated']).toBe(1)
    expect(res.autoFailed).toBe(1)
    expect(listDocuments(db, { clientId: c.id, type: 'INVOICE' })).toHaveLength(1) // invoice still issued
    expect(getRecurringPlan(db, plan.id)!.nextRun).toBe('2026-08-10')             // schedule advanced on generation
    const rem = listReminders(db, { ruleKind: 'recurring_generated' })[0]!
    expect(rem.status).toBe('failed')                                             // waits in the manual queue
    // Re-run: next_run is now in the future → no second invoice, no duplicate reminder.
    const again = await runDailyScan(db, deps(deadFetch), '2026-07-10')
    expect(again.created['recurring_generated'] ?? 0).toBe(0)
    expect(listDocuments(db, { clientId: c.id, type: 'INVOICE' })).toHaveLength(1)
  })
  it('manual plan: generates the invoice but queues (no send)', async () => {
    const { db, c, cm } = world()
    createRecurringPlan(db, 'u1', { clientId: c.id, clientModuleId: cm.id, cadence: 'monthly', nextRun: '2026-07-10', policy: 'manual' })
    const res = await runDailyScan(db, deps(okFetch), '2026-07-10')
    expect(res.autoSent).toBe(0)
    expect(getReminder(db, listReminders(db, { ruleKind: 'recurring_generated' })[0]!.id)!.status).toBe('queued')
  })
  it('catch-up: a plan three months in arrears bills every missed month exactly once', async () => {
    const { db, c, cm } = world()
    const plan = createRecurringPlan(db, 'u1', { clientId: c.id, clientModuleId: cm.id, cadence: 'monthly', nextRun: '2026-05-10', policy: 'manual' })
    const res = await runDailyScan(db, deps(okFetch), '2026-07-10')
    expect(res.created['recurring_generated']).toBe(3) // May, Jun, Jul
    expect(listDocuments(db, { clientId: c.id, type: 'INVOICE' })).toHaveLength(3)
    expect(getRecurringPlan(db, plan.id)!.nextRun).toBe('2026-08-10')
    const periods = listReminders(db, { ruleKind: 'recurring_generated' }).map((r) => r.duePeriod).sort()
    expect(periods).toEqual(['2026-05-10', '2026-06-10', '2026-07-10'])
  })
})

• Step 2: Run to verify FAIL — npx vitest run apps/hq/test/scheduler-recurring.test.ts → FAIL (recurring not generated yet).

• Step 3: Implement. Add imports to apps/hq/src/scheduler.ts:

import { writeAudit } from './audit'
import { createDraft, issueDocument } from './repos-documents'
import { getClientModule } from './repos-modules'
import { CADENCE_KIND, getRecurringPlan } from './repos-recurring'
import { sendReminder } from './send-reminder'

Add the cadence helper (next to addDaysIso):

/** Advance a YYYY-MM-DD anchor by one cadence (UTC; month/day overflow normalizes). */
export function addCadence(dateIso: string, cadence: 'monthly' | 'yearly'): string {
  const [y, m, d] = dateIso.split('-').map(Number)
  const ms = cadence === 'yearly' ? Date.UTC(y! + 1, m! - 1, d!) : Date.UTC(y!, m!, d!)
  return new Date(ms).toISOString().slice(0, 10)
}

Add the generation helpers:

type ClaimResult = 'done' | { created: boolean; auto: boolean; reminderId: string }

/** One period for one plan, atomically. Callers wrap in db.transaction. */
function claimAndGenerate(db: DB, planId: string, today: string, now: string): ClaimResult {
  const plan = getRecurringPlan(db, planId)
  if (plan === null || !plan.active || plan.nextRun > today) return 'done'
  const duePeriod = plan.nextRun
  const up = upsertReminder(db, {
    ruleKind: 'recurring_generated', subjectId: plan.id, duePeriod,
    clientId: plan.clientId, policyApplied: plan.policy, now,
  })
  const nextRun = addCadence(plan.nextRun, plan.cadence)
  if (!up.created) {
    // Defensive: the period's reminder already exists but next_run wasn't advanced.
    // Only reachable if generation were ever non-transactional; advance, never regenerate.
    db.prepare(`UPDATE recurring_plan SET next_run=? WHERE id=?`).run(nextRun, planId)
    return { created: false, auto: false, reminderId: up.id }
  }
  if (plan.clientModuleId === null) throw new Error(`recurring_plan ${plan.id}: client_module required to generate`)
  const cm = getClientModule(db, plan.clientModuleId)
  if (cm === null) throw new Error(`recurring_plan ${plan.id}: client_module not found`)
  const kind = CADENCE_KIND[plan.cadence]
  const draft = createDraft(db, 'system', {
    docType: 'INVOICE', clientId: plan.clientId,
    lines: [{
      moduleId: cm.moduleId, qty: 1, kind, edition: cm.edition,
      ...(plan.amountPaise !== null ? { unitPricePaise: plan.amountPaise } : {}),
    }],
  })
  const inv = issueDocument(db, 'system', draft.id)
  db.prepare(`UPDATE reminder SET doc_id=? WHERE id=?`).run(inv.id, up.id)
  db.prepare(`UPDATE recurring_plan SET next_run=? WHERE id=?`).run(nextRun, planId)
  writeAudit(db, 'system', 'generate', 'recurring_plan', plan.id, { nextRun: plan.nextRun }, { nextRun, invoiceId: inv.id })
  return { created: true, auto: plan.policy === 'auto', reminderId: up.id }
}

/** Generate every due period for every active plan; collect auto reminders to send. */
function generateRecurring(db: DB, today: string, now: string, created: Record<string, number>): string[] {
  const plans = db.prepare(
    `SELECT id FROM recurring_plan WHERE active=1 AND next_run <= ?`,
  ).all(today) as { id: string }[]
  const autoQueue: string[] = []
  for (const { id } of plans) {
    let guard = 0
    for (;;) {
      if (guard++ > 240) break // safety cap: ~20 years of monthly against a corrupt next_run
      const claim = db.transaction(() => claimAndGenerate(db, id, today, now))()
      if (claim === 'done') break
      if (claim.created) {
        bump(created, 'recurring_generated')
        if (claim.auto) autoQueue.push(claim.reminderId)
      }
    }
  }
  return autoQueue
}

Finally, extend runDailyScan — replace its return with the recurring pass + auto-send loop:

  // --- recurring_generated (transactional generation, then async auto-send) ---
  const autoQueue = generateRecurring(db, today, now, created)
  let autoSent = 0
  let autoFailed = 0
  for (const reminderId of autoQueue) {
    // Send outside the generation transaction: a failed send never rolls back the
    // (already-issued) invoice or the advanced schedule — it just parks the reminder.
    const out = await sendReminder(db, deps, reminderId, 'system')
    if (out.ok) autoSent += 1
    else autoFailed += 1
  }

  return { today, created, autoSent, autoFailed }

• Step 4: Run tests — npx vitest run apps/hq/test/scheduler-recurring.test.ts → PASS (all four cases, including catch-up = 3 and failed-send = still-one-invoice). Full npm test green. npm run typecheck → clean.

• Step 5: Commit

git add apps/hq/src/scheduler.ts apps/hq/test/scheduler-recurring.test.ts
git commit -m "feat(hq): recurring invoice generation with at-most-once auto-send" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"

---

Task 9: Bounce detection — Gmail readonly scope + pollBounces

Files:

• Modify: apps/hq/scripts/gmail-connect.ts (widen SCOPE to also request gmail.readonly)
• Create: apps/hq/src/bounces.ts (pollBounces + markBounce)
• Test: apps/hq/test/bounces.test.ts

Interfaces:

• bounces.ts produces:

  • interface BounceDeps { gmail: GmailDeps; now?: () => string }
  • pollBounces(db, deps): Promise<{ scanned: number; bounced: number }> — reads mailer-daemon/postmaster DSNs since reminders.bounce_last_poll (default: 2 days back), extracts the failed recipient(s), and for each calls markBounce. Fetch-based (injectable deps.gmail.f), token-death-aware (markAccountDead + bail). Advances reminders.bounce_last_poll only on a clean pass.
  • markBounce(db, recipient, at): number — flips the most recent email_log row (to_addr=recipient, status='sent', bounced=0) to bounced=1, resolves the client via the linked document, and raises an email_bounced reminder (INSERT OR IGNORE, subject_id = due_period = email_log.id → idempotent). Returns 1 if a row matched, else 0.

• The email_log.bounced column already exists (added via the guarded migrate in Task 1). The email_bounced rule kind is already in the reminder.rule_kind CHECK (Task 1). Note: the company mailbox is not yet connected in production, so widening the OAuth scope now costs no re-consent — the first gmail-connect run grants both scopes together.

• Step 1: Write the failing test (fetch injected; no network)

// apps/hq/test/bounces.test.ts
import { describe, it, expect } from 'vitest'
import { openDb } from '../src/db'
import { seedIfEmpty } from '../src/seed'
import { saveAccount, logEmail } from '../src/repos-email'
import { encrypt } from '../src/crypto'
import { listReminders } from '../src/repos-reminders'
import { pollBounces, type BounceDeps } from '../src/bounces'

const KEY = '11'.repeat(32)

function bounceFetch(recipient: string): typeof fetch {
  return (async (url: string) => {
    const u = String(url)
    if (u.includes('/token')) return new Response(JSON.stringify({ access_token: 'at' }), { status: 200 })
    if (u.includes('/messages/b1')) {
      return new Response(JSON.stringify({
        snippet: `Delivery to ${recipient} failed permanently`,
        payload: { headers: [{ name: 'X-Failed-Recipients', value: recipient }] },
      }), { status: 200 })
    }
    return new Response(JSON.stringify({ messages: [{ id: 'b1' }] }), { status: 200 }) // list
  }) as typeof fetch
}

describe('pollBounces', () => {
  it('flips the sent email_log to bounced and raises an email_bounced reminder, idempotently', async () => {
    const db = openDb(':memory:'); seedIfEmpty(db)
    saveAccount(db, 'us@sims.com', encrypt('rt', KEY))
    logEmail(db, { to: 'ravi@acme.in', subject: 'INV/26-27-0001', status: 'sent', gmailMessageId: 'g1' })
    const deps: BounceDeps = {
      gmail: { f: bounceFetch('ravi@acme.in'), clientId: 'cid', clientSecret: 'sec', keyHex: KEY },
      now: () => '2026-07-10T00:00:00Z',
    }
    const out = await pollBounces(db, deps)
    expect(out).toEqual({ scanned: 1, bounced: 1 })
    expect(db.prepare(`SELECT bounced FROM email_log WHERE to_addr='ravi@acme.in'`).get()).toMatchObject({ bounced: 1 })
    expect(listReminders(db, { ruleKind: 'email_bounced' })).toHaveLength(1)
    // Re-poll: the row is already bounced=0→1, so nothing new flips and no duplicate reminder.
    const again = await pollBounces(db, deps)
    expect(again.bounced).toBe(0)
    expect(listReminders(db, { ruleKind: 'email_bounced' })).toHaveLength(1)
  })
  it('no-ops cleanly when Gmail is not connected', async () => {
    const db = openDb(':memory:'); seedIfEmpty(db)
    const deps: BounceDeps = { gmail: { f: bounceFetch('x@y.z'), clientId: '', clientSecret: '', keyHex: KEY }, now: () => '2026-07-10T00:00:00Z' }
    expect(await pollBounces(db, deps)).toEqual({ scanned: 0, bounced: 0 })
  })
})

• Step 2: Run to verify FAIL — npx vitest run apps/hq/test/bounces.test.ts → FAIL.

• Step 3: Implement. In apps/hq/scripts/gmail-connect.ts replace the SCOPE constant:

// Two scopes: send (HQ-1) and readonly (HQ-2 bounce polling reads mailer-daemon DSNs).
// The company mailbox is not yet connected in production, so requesting both now
// costs no extra consent — the first connect grants them together.
const SCOPE = [
  'https://www.googleapis.com/auth/gmail.send',
  'https://www.googleapis.com/auth/gmail.readonly',
].join(' ')

(The existing gmail-connect.test.ts asserts the scope merely contains gmail.send, so it still passes.)

Create apps/hq/src/bounces.ts:

import { writeAudit } from './audit'
import { decrypt } from './crypto'
import type { DB } from './db'
import { getAccessToken, markAccountDead, TokenDeadError, type GmailDeps } from './gmail'
import { getDocument } from './repos-documents'
import { getAccount } from './repos-email'
import { getSetting, setSetting, upsertReminder } from './repos-reminders'

/**
 * Bounce detection — "sent" ≠ "delivered" (spec §3). Polls the mailbox (Gmail
 * readonly) for mailer-daemon/postmaster DSNs since the last poll, matches failed
 * recipients against email_log, flips them to bounced and raises a dashboard
 * reminder. fetch is injected so tests run offline. Idempotent: a row only flips
 * once (bounced=0 guard) and the reminder keys on the email_log id.
 */

const GMAIL_LIST = 'https://gmail.googleapis.com/gmail/v1/users/me/messages'
const EMAIL_RE = /[\w.+-]+@[\w-]+\.[\w.-]+/g

export interface BounceDeps { gmail: GmailDeps; now?: () => string }

interface GmailMessageMeta { snippet?: string; payload?: { headers?: { name: string; value: string }[] } }

function extractRecipients(msg: GmailMessageMeta): string[] {
  const out = new Set<string>()
  for (const h of msg.payload?.headers ?? []) {
    if (h.name.toLowerCase() === 'x-failed-recipients') {
      for (const a of h.value.split(',')) { const t = a.trim(); if (t !== '') out.add(t.toLowerCase()) }
    }
  }
  for (const m of (msg.snippet ?? '').matchAll(EMAIL_RE)) out.add(m[0].toLowerCase())
  return [...out]
}

/** Flip the most recent matching sent log to bounced + raise an email_bounced reminder. */
export function markBounce(db: DB, recipient: string, at: string): number {
  const row = db.prepare(
    `SELECT id, document_id FROM email_log
     WHERE lower(to_addr)=lower(?) AND status='sent' AND bounced=0
     ORDER BY id DESC LIMIT 1`,
  ).get(recipient) as { id: string; document_id: string | null } | undefined
  if (row === undefined) return 0
  db.prepare(`UPDATE email_log SET bounced=1 WHERE id=?`).run(row.id)
  const clientId = row.document_id !== null ? (getDocument(db, row.document_id)?.clientId ?? '') : ''
  upsertReminder(db, {
    ruleKind: 'email_bounced', subjectId: row.id, duePeriod: row.id, clientId,
    docId: row.document_id, now: at,
  })
  writeAudit(db, 'system', 'update', 'email_log', row.id, { bounced: 0 }, { bounced: 1, recipient })
  return 1
}

export async function pollBounces(db: DB, deps: BounceDeps): Promise<{ scanned: number; bounced: number }> {
  const now = deps.now?.() ?? new Date().toISOString()
  const account = getAccount(db)
  if (account === null || account.status === 'dead') return { scanned: 0, bounced: 0 }
  let accessToken: string
  try {
    accessToken = await getAccessToken(
      decrypt(account.refreshTokenEnc, deps.gmail.keyHex), deps.gmail.clientId, deps.gmail.clientSecret, deps.gmail.f,
    )
  } catch (err) {
    if (err instanceof TokenDeadError) markAccountDead(db)
    return { scanned: 0, bounced: 0 }
  }
  const since = getSetting(db, 'reminders.bounce_last_poll')
    ?? new Date(Date.parse(now) - 2 * 86_400_000).toISOString()
  const q = `from:mailer-daemon OR from:postmaster after:${Math.floor(Date.parse(since) / 1000)}`
  const headers = { authorization: `Bearer ${accessToken}` }
  let scanned = 0
  let bounced = 0
  try {
    const list = await deps.gmail.f(`${GMAIL_LIST}?q=${encodeURIComponent(q)}`, { headers })
    const listJson = await list.json().catch(() => ({})) as { messages?: { id: string }[] }
    for (const { id } of listJson.messages ?? []) {
      scanned += 1
      const msg = await deps.gmail.f(
        `${GMAIL_LIST}/${id}?format=metadata&metadataHeaders=Subject&metadataHeaders=X-Failed-Recipients`, { headers },
      )
      const meta = await msg.json().catch(() => ({})) as GmailMessageMeta
      for (const recipient of extractRecipients(meta)) bounced += markBounce(db, recipient, now)
    }
  } catch {
    // Network hiccup: leave bounce_last_poll unchanged so the next pass re-scans this window.
    return { scanned, bounced }
  }
  setSetting(db, 'system', 'reminders.bounce_last_poll', now)
  return { scanned, bounced }
}

• Step 4: Run tests — npx vitest run apps/hq/test/bounces.test.ts → PASS. npx vitest run apps/hq/test/gmail-connect.test.ts still PASS. npm run typecheck → clean.

• Step 5: Commit

git add apps/hq/scripts/gmail-connect.ts apps/hq/src/bounces.ts apps/hq/test/bounces.test.ts
git commit -m "feat(hq): mailbox bounce detection with email_bounced reminders" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"

---

Task 10: Dashboard aggregation + /api/dashboard + scheduler wiring in server.ts

Files:

• Create: apps/hq/src/repos-dashboard.ts
• Modify: apps/hq/src/api.ts (GET /api/dashboard), apps/hq/src/server.ts (startServer(port, { scheduler }) + startScheduler)
• Test: apps/hq/test/dashboard.test.ts

Interfaces:

• repos-dashboard.ts produces dashboardView(db, today): DashboardView where

  interface DashboardView {
    today: string
    overdue: { docId; docNo: string | null; clientId; clientName; outstandingPaise; daysOverdue }[]
    dueThisWeek: { planId; clientId; clientName; nextRun; amountPaise: number | null }[]
    renewalsThisMonth: { clientModuleId; clientId; clientName; nextRenewal }[]
    followUpsToday: { id; clientId; clientName; onDate; followUpOn: string; notes }[]
    recentPayments: { id; clientId; clientName; receivedOn; amountPaise; mode }[]
    queue: (Reminder & { clientName: string; docNo: string | null })[]
    totals: { overduePaise: number; queued: number; failed: number }
  }
  

  — overdue = issued unpaid invoices (outstandingPaise > 0, doc_date <= today); dueThisWeek = active recurring plans with next_run in [today, today+7]; renewalsThisMonth = active client_modules with next_renewal in [today, end-of-month]; followUpsToday via listOpenFollowUps(db, today); recentPayments = last 10; queue = listQueue(db) enriched with client name + doc number.

• server.ts produces: startServer(port: number, opts?: { scheduler?: boolean }): http.Server (scheduler off by default so tests importing startServer never spawn intervals or run scans); startScheduler(db): NodeJS.Timeout — runs runDailyScan + pollBounces on boot and every 6h, handle.unref() so it never blocks process exit. The direct-launch block passes { scheduler: true }.

• Route: GET /api/dashboard (requireAuth).

• Step 1: Write the failing test

// apps/hq/test/dashboard.test.ts
import { describe, it, expect, afterAll } from 'vitest'
import express from 'express'
import { openDb } from '../src/db'
import { seedIfEmpty } from '../src/seed'
import { createStaff } from '../src/auth'
import { apiRouter } from '../src/api'
import { createClient } from '../src/repos-clients'
import { assignModule, createModule, setPrice, updateClientModule } from '../src/repos-modules'
import { createDraft, issueDocument } from '../src/repos-documents'
import { createInteraction } from '../src/repos-interactions'
import { dashboardView } from '../src/repos-dashboard'
import { runDailyScan, type ScanDeps } from '../src/scheduler'

const scanDeps: ScanDeps = {
  gmail: { f: (async () => new Response('{}')) as typeof fetch, clientId: '', clientSecret: '', keyHex: '' },
  renderPdf: async () => Buffer.from('%PDF-'), company: () => ({ 'company.name': 'SiMS' }), now: () => '2026-07-10T00:00:00Z',
}

function seeded() {
  const db = openDb(':memory:'); seedIfEmpty(db)
  const c = createClient(db, 'u1', { name: 'Acme', stateCode: '32', contacts: [{ name: 'R', email: 'r@acme.in' }] })
  const m = createModule(db, 'u1', { code: 'POS', name: 'POS' })
  setPrice(db, 'u1', { moduleId: m.id, kind: 'yearly', pricePaise: 10_000_00, effectiveFrom: '2026-01-01' })
  const inv = issueDocument(db, 'u1', createDraft(db, 'u1', { docType: 'INVOICE', clientId: c.id, lines: [{ moduleId: m.id, qty: 1, kind: 'yearly' }] }).id)
  db.prepare(`UPDATE document SET doc_date='2026-06-01' WHERE id=?`).run(inv.id)
  const cm = assignModule(db, 'u1', { clientId: c.id, moduleId: m.id, kind: 'yearly' })
  updateClientModule(db, 'u1', cm.id, { nextRenewal: '2026-07-20' })
  createInteraction(db, 'u1', { clientId: c.id, typeCode: 'call', onDate: '2026-07-01', followUpOn: '2026-07-09' })
  return { db, c, inv }
}

describe('dashboardView', () => {
  it('aggregates overdue, renewals, follow-ups and the reminder queue', async () => {
    const { db, inv } = seeded()
    await runDailyScan(db, scanDeps, '2026-07-10') // populates the queue
    const view = dashboardView(db, '2026-07-10')
    expect(view.overdue.map((o) => o.docId)).toContain(inv.id)
    expect(view.overdue[0]!.outstandingPaise).toBe(11_800_00)
    expect(view.renewalsThisMonth).toHaveLength(1)
    expect(view.followUpsToday).toHaveLength(1)
    expect(view.queue.length).toBeGreaterThanOrEqual(3) // overdue + renewal + follow_up
    expect(view.totals.overduePaise).toBe(11_800_00)
  })
})

describe('GET /api/dashboard + reminder queue routes', () => {
  const { db } = seeded()
  createStaff(db, { email: 'e2e@test.in', displayName: 'E2E', role: 'owner', password: 'e2e-password' })
  const app = express(); app.use(express.json()); app.locals['db'] = db; app.use('/api', apiRouter(db))
  const server = app.listen(0)
  const base = `http://localhost:${(server.address() as { port: number }).port}/api`
  let token = ''
  const call = async (method: string, path: string, body?: unknown) => {
    const res = await fetch(base + path, { method, headers: { 'content-type': 'application/json', authorization: `Bearer ${token}` }, ...(body ? { body: JSON.stringify(body) } : {}) })
    return { status: res.status, json: await res.json() as any }
  }
  afterAll(() => server.close())
  it('serves the dashboard, lists the queue and dismisses a reminder', async () => {
    token = (await call('POST', '/auth/login', { email: 'e2e@test.in', password: 'e2e-password' })).json.token
    await runDailyScan(db, scanDeps, '2026-07-10')
    const dash = (await call('GET', '/dashboard')).json
    expect(dash.ok).toBe(true)
    expect(dash.view.overdue.length).toBeGreaterThanOrEqual(1)
    const queue = (await call('GET', '/reminders')).json.reminders
    expect(queue.length).toBeGreaterThanOrEqual(1)
    const dismissed = (await call('POST', `/reminders/${queue[0].id}/dismiss`)).json
    expect(dismissed.reminder.status).toBe('dismissed')
  })
})

• Step 2: Run to verify FAIL — npx vitest run apps/hq/test/dashboard.test.ts → FAIL.

• Step 3: Implement apps/hq/src/repos-dashboard.ts

import type { DB } from './db'
import { outstandingPaise } from './repos-payments'
import { listOpenFollowUps } from './repos-interactions'
import { listQueue, type Reminder } from './repos-reminders'
import { addDaysIso } from './scheduler'

/** Read-only money view for the dashboard home (spec §3 "today's money"). */

export interface DashboardView {
  today: string
  overdue: { docId: string; docNo: string | null; clientId: string; clientName: string; outstandingPaise: number; daysOverdue: number }[]
  dueThisWeek: { planId: string; clientId: string; clientName: string; nextRun: string; amountPaise: number | null }[]
  renewalsThisMonth: { clientModuleId: string; clientId: string; clientName: string; nextRenewal: string }[]
  followUpsToday: { id: string; clientId: string; clientName: string; onDate: string; followUpOn: string; notes: string }[]
  recentPayments: { id: string; clientId: string; clientName: string; receivedOn: string; amountPaise: number; mode: string }[]
  queue: (Reminder & { clientName: string; docNo: string | null })[]
  totals: { overduePaise: number; queued: number; failed: number }
}

function daysBetween(fromIso: string, toIso: string): number {
  return Math.round((Date.parse(toIso) - Date.parse(fromIso)) / 86_400_000)
}

function endOfMonth(today: string): string {
  const [y, m] = today.split('-').map(Number)
  return new Date(Date.UTC(y!, m!, 0)).toISOString().slice(0, 10) // day 0 of next month = last day of this
}

export function dashboardView(db: DB, today: string): DashboardView {
  const overdueRows = db.prepare(
    `SELECT d.id, d.doc_no, d.client_id, d.doc_date, c.name AS client_name
     FROM document d JOIN client c ON c.id = d.client_id
     WHERE d.doc_type='INVOICE' AND d.doc_no IS NOT NULL
       AND d.status NOT IN ('paid','cancelled','lost') AND d.doc_date <= ?
     ORDER BY d.doc_date`,
  ).all(today) as { id: string; doc_no: string | null; client_id: string; doc_date: string; client_name: string }[]
  const overdue: DashboardView['overdue'] = []
  let overduePaise = 0
  for (const r of overdueRows) {
    const outstanding = outstandingPaise(db, r.id)
    if (outstanding <= 0) continue
    overduePaise += outstanding
    overdue.push({
      docId: r.id, docNo: r.doc_no, clientId: r.client_id, clientName: r.client_name,
      outstandingPaise: outstanding, daysOverdue: Math.max(0, daysBetween(r.doc_date, today)),
    })
  }

  const weekEnd = addDaysIso(today, 7)
  const dueThisWeek = db.prepare(
    `SELECT rp.id AS plan_id, rp.client_id, rp.next_run, rp.amount_paise, c.name AS client_name
     FROM recurring_plan rp JOIN client c ON c.id = rp.client_id
     WHERE rp.active=1 AND rp.next_run >= ? AND rp.next_run <= ? ORDER BY rp.next_run`,
  ).all(today, weekEnd).map((r) => {
    const row = r as { plan_id: string; client_id: string; next_run: string; amount_paise: number | null; client_name: string }
    return { planId: row.plan_id, clientId: row.client_id, clientName: row.client_name, nextRun: row.next_run, amountPaise: row.amount_paise }
  })

  const renewalsThisMonth = db.prepare(
    `SELECT cm.id AS cm_id, cm.client_id, cm.next_renewal, c.name AS client_name
     FROM client_module cm JOIN client c ON c.id = cm.client_id
     WHERE cm.active=1 AND cm.next_renewal >= ? AND cm.next_renewal <= ? ORDER BY cm.next_renewal`,
  ).all(today, endOfMonth(today)).map((r) => {
    const row = r as { cm_id: string; client_id: string; next_renewal: string; client_name: string }
    return { clientModuleId: row.cm_id, clientId: row.client_id, clientName: row.client_name, nextRenewal: row.next_renewal }
  })

  const followUpsToday = listOpenFollowUps(db, today).map((f) => ({
    id: f.id, clientId: f.clientId, clientName: f.clientName, onDate: f.onDate,
    followUpOn: f.followUpOn!, notes: f.notes,
  }))

  const recentPayments = db.prepare(
    `SELECT p.id, p.client_id, p.received_on, p.amount_paise, p.mode, c.name AS client_name
     FROM payment p JOIN client c ON c.id = p.client_id ORDER BY p.id DESC LIMIT 10`,
  ).all().map((r) => {
    const row = r as { id: string; client_id: string; received_on: string; amount_paise: number; mode: string; client_name: string }
    return { id: row.id, clientId: row.client_id, clientName: row.client_name, receivedOn: row.received_on, amountPaise: row.amount_paise, mode: row.mode }
  })

  const queue = listQueue(db).map((rem) => {
    const client = db.prepare(`SELECT name FROM client WHERE id=?`).get(rem.clientId) as { name: string } | undefined
    const doc = rem.docId !== null
      ? db.prepare(`SELECT doc_no FROM document WHERE id=?`).get(rem.docId) as { doc_no: string | null } | undefined
      : undefined
    return { ...rem, clientName: client?.name ?? '', docNo: doc?.doc_no ?? null }
  })

  return {
    today, overdue, dueThisWeek, renewalsThisMonth, followUpsToday, recentPayments, queue,
    totals: {
      overduePaise,
      queued: queue.filter((q) => q.status === 'queued').length,
      failed: queue.filter((q) => q.status === 'failed').length,
    },
  }
}

Add the route in api.ts (import + handler):

import { dashboardView } from './repos-dashboard'

  // ---------- dashboard ----------
  r.get('/dashboard', requireAuth, (_req, res) => {
    const today = new Date().toISOString().slice(0, 10)
    res.json({ ok: true, view: dashboardView(db, today) })
  })

Wire the scheduler in apps/hq/src/server.ts — add imports, startScheduler, and the opts param:

import type { DB } from './db'
import { pollBounces } from './bounces'
import { renderPdf } from './pdf'
import { runDailyScan } from './scheduler'

function schedulerDeps(db: DB) {
  const company = (): Record<string, string> =>
    Object.fromEntries((db.prepare(`SELECT key, value FROM setting WHERE key LIKE 'company.%'`)
      .all() as { key: string; value: string }[]).map((r) => [r.key, r.value]))
  const gmail = {
    f: fetch,
    clientId: process.env['GOOGLE_CLIENT_ID'] ?? '',
    clientSecret: process.env['GOOGLE_CLIENT_SECRET'] ?? '',
    keyHex: process.env['HQ_SECRET_KEY'] ?? '',
  }
  return { gmail, renderPdf, company }
}

/** Boot the scan + bounce poll now and every 6h. unref() so it never blocks exit. */
export function startScheduler(db: DB): NodeJS.Timeout {
  const deps = schedulerDeps(db)
  const today = (): string => new Date().toISOString().slice(0, 10)
  const tick = (): void => {
    void runDailyScan(db, deps, today()).catch((e: unknown) => console.error('[scheduler] scan failed', e))
    void pollBounces(db, deps).catch((e: unknown) => console.error('[scheduler] bounce poll failed', e))
  }
  tick()
  const handle = setInterval(tick, 6 * 60 * 60 * 1000)
  handle.unref()
  return handle
}

Change startServer to take options and start the scheduler only when asked (default off keeps existing tests interval-free):

export function startServer(port: number, opts: { scheduler?: boolean } = {}): http.Server {
  const app = express()
  const db = openDb(process.env['HQ_DATA_DIR'])
  seedIfEmpty(db)
  app.locals['db'] = db
  app.use(express.json({ limit: '2mb' }))
  app.use('/api', apiRouter(db))
  const webDist = path.resolve(moduleDir, '../../hq-web/dist')
  if (fs.existsSync(webDist)) app.use('/', express.static(webDist))
  if (opts.scheduler === true) startScheduler(db)
  return app.listen(port)
}

And the direct-launch block passes { scheduler: true }:

if (process.argv[1]?.endsWith('server.cjs') || process.argv[1]?.endsWith('server.ts')) {
  const PORT = Number(process.env['HQ_PORT'] ?? 5182)
  startServer(PORT, { scheduler: true })
  console.log(`SiMS HQ console on http://localhost:${PORT}`)
}

• Step 4: Run tests — npx vitest run apps/hq/test/dashboard.test.ts → PASS. Full npm test green (HQ-1's health.test.ts still exits cleanly — startServer(0) starts no interval). npm run typecheck → clean.

• Step 5: Commit

git add apps/hq/src/repos-dashboard.ts apps/hq/src/api.ts apps/hq/src/server.ts apps/hq/test/dashboard.test.ts
git commit -m "feat(hq): dashboard money view and 6-hourly scheduler wiring" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"

---

Task 11: apps/hq-web — API client, Dashboard page (new default route), nav

Files:

• Modify: apps/hq-web/src/api.ts (types + typed calls), apps/hq-web/src/Layout.tsx (nav), apps/hq-web/src/main.tsx (routes)
• Create: apps/hq-web/src/pages/Dashboard.tsx

Interfaces / contracts:

• api.ts gains the server shapes (camelCase JSON, mirroring the repos) and typed calls. The Dashboard becomes /; the client list moves to /clients.

• Dashboard.tsx is a plain fetch-render-act page (useData from Clients, @sims/ui components) with: four StatCards (overdue ₹, queued, failed, follow-ups), the manual reminder queue (Send for sendable kinds → POST /reminders/:id/send, Dismiss → POST /reminders/:id/dismiss; a 409 surfaces the Gmail error inline), then Overdue / Due-this-week / Renewals-this-month / Follow-ups / Recent-payments tables. Rows deep-link to the document or client.

• Step 1: Implement the API client additions. Append to apps/hq-web/src/api.ts:

// ---------- HQ-2 shapes ----------

export type Cadence = 'monthly' | 'yearly'
export interface RecurringPlan {
  id: string; clientId: string; clientModuleId: string | null; cadence: Cadence
  amountPaise: number | null; nextRun: string; policy: 'auto' | 'manual'; active: boolean
}

export type AmcPaidStatus = 'paid' | 'unpaid' | 'unbilled'
export interface AmcContract {
  id: string; clientId: string; coverage: string; periodFrom: string; periodTo: string
  amountPaise: number; renewalReminderDays: number; legacyPaid: boolean | null
  invoiceDocId: string | null; active: boolean; paidStatus: AmcPaidStatus
}

export interface InteractionType { code: string; label: string }
export type Outcome = 'positive' | 'neutral' | 'negative'
export interface Interaction {
  id: string; clientId: string; typeCode: string; onDate: string; staffId: string
  notes: string; outcome: Outcome | null; followUpOn: string | null; createdAt: string
}

export type ReminderRuleKind =
  | 'invoice_overdue' | 'renewal_due' | 'amc_expiring' | 'follow_up' | 'recurring_generated' | 'email_bounced'
export type ReminderStatus = 'queued' | 'sent' | 'failed' | 'dismissed'
export interface Reminder {
  id: string; ruleKind: ReminderRuleKind; subjectId: string; duePeriod: string; clientId: string
  docId: string | null; status: ReminderStatus; policyApplied: 'auto' | 'manual'
  error: string | null; createdAt: string; sentAt: string | null
}

export interface DashboardView {
  today: string
  overdue: { docId: string; docNo: string | null; clientId: string; clientName: string; outstandingPaise: number; daysOverdue: number }[]
  dueThisWeek: { planId: string; clientId: string; clientName: string; nextRun: string; amountPaise: number | null }[]
  renewalsThisMonth: { clientModuleId: string; clientId: string; clientName: string; nextRenewal: string }[]
  followUpsToday: { id: string; clientId: string; clientName: string; onDate: string; followUpOn: string; notes: string }[]
  recentPayments: { id: string; clientId: string; clientName: string; receivedOn: string; amountPaise: number; mode: string }[]
  queue: (Reminder & { clientName: string; docNo: string | null })[]
  totals: { overduePaise: number; queued: number; failed: number }
}

// ---------- HQ-2 calls ----------

export const getDashboard = (): Promise<DashboardView> =>
  apiFetch<{ view: DashboardView }>('/dashboard').then((r) => r.view)
export const getReminders = (status?: ReminderStatus): Promise<Reminder[]> =>
  apiFetch<{ reminders: Reminder[] }>(`/reminders${status !== undefined ? `?status=${status}` : ''}`).then((r) => r.reminders)
export const sendReminder = (id: string): Promise<Reminder> =>
  apiFetch<{ reminder: Reminder }>(`/reminders/${id}/send`, { method: 'POST', body: '{}' }).then((r) => r.reminder)
export const dismissReminder = (id: string): Promise<Reminder> =>
  apiFetch<{ reminder: Reminder }>(`/reminders/${id}/dismiss`, { method: 'POST', body: '{}' }).then((r) => r.reminder)

export const getRecurringPlans = (clientId: string): Promise<RecurringPlan[]> =>
  apiFetch<{ plans: RecurringPlan[] }>(`/recurring?clientId=${clientId}`).then((r) => r.plans)
export const createRecurringPlan = (clientId: string, body: Record<string, unknown>): Promise<RecurringPlan> =>
  apiFetch<{ plan: RecurringPlan }>(`/clients/${clientId}/recurring`, { method: 'POST', body: JSON.stringify(body) }).then((r) => r.plan)
export const updateRecurringPlan = (id: string, body: Record<string, unknown>): Promise<RecurringPlan> =>
  apiFetch<{ plan: RecurringPlan }>(`/recurring/${id}`, { method: 'PATCH', body: JSON.stringify(body) }).then((r) => r.plan)
export const deactivateRecurringPlan = (id: string): Promise<RecurringPlan> =>
  apiFetch<{ plan: RecurringPlan }>(`/recurring/${id}/deactivate`, { method: 'POST', body: '{}' }).then((r) => r.plan)

export const getAmc = (clientId: string): Promise<AmcContract[]> =>
  apiFetch<{ contracts: AmcContract[] }>(`/clients/${clientId}/amc`).then((r) => r.contracts)
export const createAmc = (clientId: string, body: Record<string, unknown>): Promise<AmcContract> =>
  apiFetch<{ contract: AmcContract }>(`/clients/${clientId}/amc`, { method: 'POST', body: JSON.stringify(body) }).then((r) => r.contract)
export const updateAmc = (id: string, body: Record<string, unknown>): Promise<AmcContract> =>
  apiFetch<{ contract: AmcContract }>(`/amc/${id}`, { method: 'PATCH', body: JSON.stringify(body) }).then((r) => r.contract)
export const deactivateAmc = (id: string): Promise<AmcContract> =>
  apiFetch<{ contract: AmcContract }>(`/amc/${id}/deactivate`, { method: 'POST', body: '{}' }).then((r) => r.contract)
export const generateAmcRenewalInvoice = (id: string): Promise<Doc> =>
  apiFetch<{ document: Doc }>(`/amc/${id}/renewal-invoice`, { method: 'POST', body: '{}' }).then((r) => r.document)

export const getInteractionTypes = (): Promise<InteractionType[]> =>
  apiFetch<{ types: InteractionType[] }>('/interaction-types').then((r) => r.types)
export const getInteractions = (clientId: string): Promise<Interaction[]> =>
  apiFetch<{ interactions: Interaction[] }>(`/clients/${clientId}/interactions`).then((r) => r.interactions)
export const createInteraction = (clientId: string, body: Record<string, unknown>): Promise<Interaction> =>
  apiFetch<{ interaction: Interaction }>(`/clients/${clientId}/interactions`, { method: 'POST', body: JSON.stringify(body) }).then((r) => r.interaction)
export const updateInteraction = (id: string, body: Record<string, unknown>): Promise<Interaction> =>
  apiFetch<{ interaction: Interaction }>(`/interactions/${id}`, { method: 'PATCH', body: JSON.stringify(body) }).then((r) => r.interaction)

• Step 2: Create apps/hq-web/src/pages/Dashboard.tsx

import { useState } from 'react'
import { useNavigate } from 'react-router-dom'
import { formatINR } from '@sims/domain'
import { Badge, Button, DataTable, EmptyState, Notice, PageHeader, StatCard, Stats } from '@sims/ui'
import { getDashboard, sendReminder, dismissReminder, type Reminder } from '../api'
import { useData } from './Clients'

const inr = (p: number) => formatINR(p)

const RULE_LABEL: Record<string, string> = {
  invoice_overdue: 'Overdue invoice', renewal_due: 'Renewal due', amc_expiring: 'AMC expiring',
  follow_up: 'Follow-up', recurring_generated: 'Recurring invoice', email_bounced: 'Email bounced',
}
const SENDABLE = new Set(['invoice_overdue', 'renewal_due', 'amc_expiring', 'recurring_generated'])
const toneFor = (status: string): 'ok' | 'warn' | 'err' =>
  status === 'failed' ? 'err' : status === 'sent' ? 'ok' : 'warn'

/** Dashboard home — today's money + the manual reminder queue (spec §3). */
export function Dashboard() {
  const nav = useNavigate()
  const dash = useData(getDashboard, [])
  const [err, setErr] = useState('')
  const v = dash.data

  return (
    <div className="wf-page">
      <PageHeader title="Dashboard" desc="Today’s money — dues, renewals, follow-ups, and the reminder queue." />
      {dash.error !== undefined && <Notice tone="err">{dash.error}</Notice>}
      {err !== '' && <Notice tone="err">{err}</Notice>}
      {v === undefined ? <EmptyState>Loading…</EmptyState> : (
        <>
          <Stats>
            <StatCard label="Overdue" value={inr(v.totals.overduePaise)} hint={`${v.overdue.length} invoice(s)`} />
            <StatCard label="Queued reminders" value={String(v.totals.queued)} />
            <StatCard label="Failed sends" value={String(v.totals.failed)} />
            <StatCard label="Follow-ups today" value={String(v.followUpsToday.length)} />
          </Stats>

          <h3>Reminder queue</h3>
          {v.queue.length === 0 ? <EmptyState>Nothing waiting — all clear.</EmptyState> : (
            <DataTable
              columns={[
                { key: 'kind', label: 'Kind' }, { key: 'client', label: 'Client' },
                { key: 'ref', label: 'Reference' }, { key: 'status', label: 'Status' },
                { key: 'error', label: 'Error' }, { key: 'act', label: '' },
              ]}
              rows={v.queue.map((rem) => ({
                kind: RULE_LABEL[rem.ruleKind] ?? rem.ruleKind,
                client: rem.clientName,
                ref: rem.docNo ?? rem.duePeriod,
                status: <Badge tone={toneFor(rem.status)}>{rem.status}</Badge>,
                error: rem.error ?? '—',
                act: <QueueActions rem={rem} onDone={dash.reload} onError={setErr} />,
              }))}
            />
          )}

          <Section title="Overdue" empty="No overdue invoices." rows={v.overdue}
            columns={[{ key: 'no', label: 'Invoice' }, { key: 'client', label: 'Client' }, { key: 'days', label: 'Days', numeric: true }, { key: 'due', label: 'Outstanding', numeric: true }]}
            onRowClick={(i) => nav(`/documents/${v.overdue[i]!.docId}`)}
            map={(o) => ({ no: o.docNo ?? '—', client: o.clientName, days: o.daysOverdue, due: inr(o.outstandingPaise) })} />

          <Section title="Due this week" empty="No recurring bills due this week." rows={v.dueThisWeek}
            columns={[{ key: 'client', label: 'Client' }, { key: 'on', label: 'Runs on' }, { key: 'amt', label: 'Amount', numeric: true }]}
            map={(d) => ({ client: d.clientName, on: d.nextRun, amt: d.amountPaise !== null ? inr(d.amountPaise) : 'from price book' })} />

          <Section title="Renewals this month" empty="No renewals this month." rows={v.renewalsThisMonth}
            columns={[{ key: 'client', label: 'Client' }, { key: 'on', label: 'Renews on' }]}
            onRowClick={(i) => nav(`/clients/${v.renewalsThisMonth[i]!.clientId}`)}
            map={(r) => ({ client: r.clientName, on: r.nextRenewal })} />

          <Section title="Follow-ups today" empty="No follow-ups due." rows={v.followUpsToday}
            columns={[{ key: 'client', label: 'Client' }, { key: 'on', label: 'Due' }, { key: 'notes', label: 'Notes' }]}
            onRowClick={(i) => nav(`/clients/${v.followUpsToday[i]!.clientId}`)}
            map={(f) => ({ client: f.clientName, on: f.followUpOn, notes: f.notes !== '' ? f.notes : '—' })} />

          <Section title="Recent payments" empty="No payments recorded yet." rows={v.recentPayments}
            columns={[{ key: 'client', label: 'Client' }, { key: 'on', label: 'Received' }, { key: 'mode', label: 'Mode' }, { key: 'amt', label: 'Amount', numeric: true }]}
            map={(p) => ({ client: p.clientName, on: p.receivedOn, mode: p.mode, amt: inr(p.amountPaise) })} />
        </>
      )}
    </div>
  )
}

/** A titled table with an empty state — keeps the dashboard body declarative. */
function Section<T>(props: {
  title: string; empty: string; rows: T[]
  columns: { key: string; label: string; numeric?: boolean }[]
  map: (row: T) => Record<string, unknown>; onRowClick?: (i: number) => void
}) {
  return (
    <>
      <h3 style={{ marginTop: 20 }}>{props.title}</h3>
      {props.rows.length === 0 ? <EmptyState>{props.empty}</EmptyState> : (
        <DataTable
          columns={props.columns}
          {...(props.onRowClick !== undefined ? { onRowClick: (_r: unknown, i: number) => props.onRowClick!(i) } : {})}
          rows={props.rows.map(props.map)}
        />
      )}
    </>
  )
}

function QueueActions(props: { rem: Reminder & { docNo: string | null }; onDone: () => void; onError: (m: string) => void }) {
  const [busy, setBusy] = useState(false)
  const run = (p: Promise<unknown>) => {
    setBusy(true); props.onError('')
    p.then(props.onDone).catch((e: Error) => props.onError(e.message)).finally(() => setBusy(false))
  }
  return (
    <div style={{ display: 'flex', gap: 6 }}>
      {SENDABLE.has(props.rem.ruleKind) && (
        <Button tone="primary" onClick={() => run(sendReminder(props.rem.id))}>{busy ? '…' : 'Send'}</Button>
      )}
      <Button onClick={() => run(dismissReminder(props.rem.id))}>Dismiss</Button>
    </div>
  )
}

• Step 3: Nav + routes. In apps/hq-web/src/Layout.tsx change the NAV array to lead with the dashboard:

const NAV = [
  { to: '/', label: 'Dashboard' },
  { to: '/clients', label: 'Clients' },
  { to: '/modules', label: 'Modules' },
  { to: '/documents/new', label: 'New Document' },
]

In apps/hq-web/src/main.tsx import Dashboard and re-point the routes (dashboard is home; clients list moves to /clients):

import { Dashboard } from './pages/Dashboard'
// ...
        <Route element={<Layout />}>
          <Route path="/" element={<Dashboard />} />
          <Route path="/clients" element={<Clients />} />
          <Route path="/clients/:id" element={<ClientDetail />} />
          <Route path="/modules" element={<Modules />} />
          <Route path="/documents/new" element={<NewDocument />} />
          <Route path="/documents/:id" element={<DocumentView />} />
          <Route path="*" element={<Navigate to="/" replace />} />
        </Route>

(Update the Clients.tsx "New client" success navigation and any / link that meant the client list to /clients — the row-click handlers already use /clients/:id, which is unchanged.)

• Step 4: Verify — cd apps/hq-web && npm run typecheck && npm run build → clean. With the server running (npm start in apps/hq), npm run dev: after login the Dashboard is the landing page; the nav shows Dashboard · Clients · Modules · New Document.

• Step 5: Commit

git add apps/hq-web/src/api.ts apps/hq-web/src/pages/Dashboard.tsx apps/hq-web/src/Layout.tsx apps/hq-web/src/main.tsx
git commit -m "feat(hq-web): dashboard money view with manual reminder queue as default route" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"

---

Task 12: apps/hq-web — ClientDetail Recurring / AMC / Interactions sections + full browser verification

Files:

• Modify: apps/hq-web/src/pages/ClientDetail.tsx (three new sections below the existing Payments & dues block)

Section contracts (each a plain fetch-render-act block using useData + @sims/ui, exactly like the existing Modules/Documents/Payments sections in this file; role() from ../api gates owner-only forms). Add these fetches near the top of ClientDetail:

import { role, getRecurringPlans, createRecurringPlan, deactivateRecurringPlan,
  getAmc, createAmc, generateAmcRenewalInvoice, getInteractions, getInteractionTypes, createInteraction,
  updateInteraction, type AmcContract, type Interaction, type InteractionType, type RecurringPlan } from '../api'
// inside ClientDetail():
const plans = useData(() => getRecurringPlans(id), [id])
const amc = useData(() => getAmc(id), [id])
const interactions = useData(() => getInteractions(id), [id])
const types = useData(getInteractionTypes, [])
const isOwner = role() === 'owner'

• Recurring section (<h3>Recurring plans</h3>):

  • Table columns: Module (resolve via moduleName(cm.moduleId) — look the plan's clientModuleId up in cms.data), Cadence, Amount (plan.amountPaise !== null ? inr(plan.amountPaise) : 'price book'), Next run, Policy (Badge — auto = accent, manual = warn), Active, and a Deactivate button per active row (deactivateRecurringPlan(plan.id).then(() => plans.reload())).
  • Owner-only "New recurring plan" form (render only when isOwner): a client-module select (from cms.data, label = module name + kind), a cadence select (monthly/yearly), an amount (₹, optional) input (blank → priced from the module's price book at generation; fromRupees when present), a next-run date, and a policy select (auto/manual). On save call createRecurringPlan(id, { clientModuleId, cadence, nextRun, policy, ...(amount ? { amountPaise: fromRupees(amount) } : {}) }) then plans.reload(); show the thrown error (e.g. "No monthly price…") in a Notice.

• AMC section (<h3>AMC contracts</h3>):

  • Table columns: Coverage, Period (periodFrom → periodTo), Amount (inr(amountPaise)), Reminder days, Paid (Badge from contract.paidStatus: paid=ok, unpaid=err, unbilled=warn), and actions: Generate renewal invoice (generateAmcRenewalInvoice(contract.id).then((doc) => nav(\/documents/${doc.id}`))) shown when paidStatus !== 'unpaid'`, plus Deactivate.
  • Owner-only "New AMC" form: coverage, period-from, period-to, amount (₹ → fromRupees), renewal-reminder-days (default 30). On save createAmc(id, {...}) then amc.reload().

• Interactions section (<h3>Interactions</h3>):

  • "Log interaction" form (all roles): type select (from types.data), on-date (default today()), notes textarea, outcome select (blank / positive / neutral / negative), follow-up date (optional). On save createInteraction(id, { typeCode, onDate, notes, ...(outcome ? { outcome } : {}), ...(followUpOn ? { followUpOn } : {}) }) then interactions.reload().
  • Timeline table (newest first): Date, Type (label via types.data), Notes, Outcome (Badge: positive=ok, neutral=warn, negative=err, none —), Follow-up (an inline type="date" input that PATCHes via updateInteraction(i.id, { followUpOn: value || null }) — lets staff clear/reschedule a follow-up, which the next scan picks up).

• Step 1: Implement the three sections in ClientDetail.tsx, following the existing section/sub-component style in the same file (the AssignModuleForm, RowDate, PaymentForm patterns). Reuse inr, today, and moduleName already defined at the top of the file.

• Step 2: Typecheck + build both web workspaces — cd apps/hq-web && npm run typecheck && npm run build → clean. Root npm run typecheck (both apps) → clean.

• Step 3: Full browser verification (the HQ-2 walk). Start the API (cd apps/hq && npm start), note the seeded owner password on first boot, then cd apps/hq-web && npm run dev and sign in.

  1. Recurring → generation: on a client with a subscribed module (assign one with a monthly price if needed), create a recurring plan, cadence monthly, next-run = today, policy manual. Trigger a scan without waiting 6h by restarting the API (startScheduler runs on boot) or temporarily run npx tsx -e "import('./apps/hq/src/scheduler.js')..."; the invoice appears under the client's Documents and a Recurring invoice row appears in the Dashboard queue as queued.
  2. Manual send: on the Dashboard queue click Send. With Gmail not connected, expect the amber banner-style error gmail-not-connected/gmail-token-dead and the row flips to failed (invoice still exists — confirm it did not regenerate). After gmail-connect on the server, Send succeeds and the row flips to sent.
  3. Overdue: back-date an issued unpaid invoice (or use an old one); after a scan the Dashboard Overdue list shows it with the outstanding amount, and an Overdue invoice reminder is in the queue.
  4. AMC: on ClientDetail add an AMC contract, Generate renewal invoice → opens the new invoice (₹ amount + 18% GST); the AMC Paid badge reads unpaid; record full payment → badge flips to paid. An AMC expiring within its reminder window shows an AMC expiring queue row after a scan.
  5. Interactions: log a site_visit with a follow-up date of today; the Dashboard Follow-ups today list and a Follow-up queue row both appear; Dismiss clears it.
  6. Idempotency: restart the API twice (two boot scans) and confirm the queue does not grow — no duplicate reminders, no duplicate recurring invoices.

• Step 4: Full suite green — root npm test (HQ-1's original suite + every HQ-2 test) all pass; npm run typecheck clean.

• Step 5: Commit

git add apps/hq-web/src/pages/ClientDetail.tsx
git commit -m "feat(hq-web): client 360 recurring, amc and interaction sections" -m "Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>"

---

Deferred out of HQ-2 (explicitly)

SMS pack-balance tracking (founder decision pending); AWS usage/cost pull + margin view + cross-client cost chart (HQ-3); reports — dues aging, module-wise revenue, client profitability (HQ-3); receipt PDFs on payment (trivial follow-up); per-rule auto/manual toggles for the dunning/renewal/amc rules (only recurring plans carry an auto policy in HQ-2 — everything else is the manual queue); WhatsApp as a second channel (templates already live in one place, reminder-templates.ts, so it slots in later); deploy scripts for the AWS instance.

Verification (whole plan)

1. npm test — every HQ-2 task's suite plus HQ-1's original suite stay green. The scheduler, send, and bounce tests all run offline (injected fetch + renderPdf).
2. npm run typecheck — clean across root, apps/hq, and apps/hq-web (per-app typecheck is part of the root gate).
3. Determinism check: every scheduler/bounce test passes today/now explicitly; no test reads the wall clock for logic. Re-running any scan test asserts zero new rows (idempotency).
4. Browser walk (Task 12 Step 3) — the founder-visible loop works end to end: recurring invoice generated → queued → sent; overdue/renewal/AMC/follow-up surfaced on the dashboard; one-click send and dismiss; a failed send parked (never regenerated); duplicate-free across restarts.

Self-review against spec §3 semantics

• Idempotency key per (rule, due-period): every reminder is created through upsertReminder → INSERT OR IGNORE on UNIQUE (rule_kind, subject_id, due_period). Overdue uses a month bucket; renewal/amc/follow-up use the concrete due date; recurring uses the next_run being consumed; bounce uses the email_log.id. Re-runs and post-downtime catch-up create no duplicates (asserted in scheduler-scan, scheduler-recurring catch-up=3, and bounces re-poll tests). ✅
• At-most-once across crashes/catch-up: recurring generation + next_run advance + reminder insert are one db.transaction (atomic); auto-send happens only after commit and only flips queued→sent/failed. A crash before commit rolls the whole period back; a crash after commit but mid-send leaves the reminder queued (invoice exists, schedule advanced) for a human to send — never an auto-retry, never a double invoice. ✅
• Failed send never advances the schedule: for recurring, next_run advances on generation, not send; a failed auto-send leaves the reminder failed in the manual queue with error visible and the issued invoice intact — the UNIQUE key forbids regeneration (asserted: failed-send test keeps exactly one invoice and re-scan generates nothing). For dunning/renewal/amc sends, a failure sets the reminder failed and it stays in the queue for retry; nothing is marked done. ✅
• "sent" ≠ "delivered" / bounce: email_log.status='sent' only means Gmail accepted the message; pollBounces later reads mailer-daemon/postmaster DSNs, flips the matching email_log.bounced to 1 (once — bounced=0 guard) and raises an email_bounced dashboard reminder keyed on the email_log.id. The connect script requests gmail.readonly alongside gmail.send at first consent. ✅
• Manual + auto both exist: auto = recurring_plan.policy='auto' (auto-generates and auto-sends); manual = the dashboard queue with one-click send for every other rule and for manual recurring plans. ✅
• Token death stays first-class: both send paths (sendDocumentEmail, sendReminderEmail) and pollBounces call markAccountDead on invalid_grant, so the existing Layout Gmail banner lights up and auto-sends halt to the manual queue — consistent with HQ-1. ✅