diff --git a/.gitignore b/.gitignore
index 5573059..4beb847 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,5 @@ apps/hq/data/
import-drop/
# Local ruflo tooling artifact
ruvector.db
+# Local demo dataset for screenshots (not shipped)
+.demo-data/
diff --git a/apps/hq/scripts/demo-seed.ts b/apps/hq/scripts/demo-seed.ts
new file mode 100644
index 0000000..bcec437
--- /dev/null
+++ b/apps/hq/scripts/demo-seed.ts
@@ -0,0 +1,105 @@
+/**
+ * Demo seed — populates a fresh HQ_DATA_DIR with a realistic Tecnostac dataset so the
+ * app can be shown with live screens. Run: HQ_DATA_DIR=
npx tsx scripts/demo-seed.ts
+ * Not shipped; a presentation helper.
+ */
+import { openDb } from '../src/db'
+import { seedIfEmpty } from '../src/seed'
+import { createStaff } from '../src/auth'
+import { setSetting } from '../src/repos-reminders'
+import { createClient } from '../src/repos-clients'
+import { createModule, setPrice, assignModule } from '../src/repos-modules'
+import { createDraft, issueDocument, markStatus } from '../src/repos-documents'
+import { recordPayment } from '../src/repos-payments'
+import { mintShare } from '../src/repos-shares'
+
+const db = openDb(process.env['HQ_DATA_DIR'])
+
+// Known owner so we can log in for screenshots (before seedIfEmpty, so it skips its own).
+createStaff(db, { email: 'owner@tecnostac.com', displayName: 'Thomas (Owner)', role: 'owner', password: 'demo-owner-2026' })
+seedIfEmpty(db)
+const U = 'demo'
+
+// A simple monogram logo as an SVG data URI (renders in
and puppeteer).
+const LOGO = 'data:image/svg+xml;base64,' + Buffer.from(
+ ``,
+).toString('base64')
+
+// Company + template letterhead data (what the Document Template page edits).
+const settings: Record = {
+ 'company.name': 'Tecnostac Solutions Pvt Ltd',
+ 'company.address': '2nd Floor, Cyber Park, Kakkanad, Kochi, Kerala 682030',
+ 'company.gstin': '32ABCDE1234F1Z9',
+ 'company.state_code': '32',
+ 'company.phone': '+91 98470 12345',
+ 'company.email': 'accounts@tecnostac.com',
+ 'company.bank': 'HDFC Bank · A/c 50200012345678 · IFSC HDFC0001234 · Kakkanad',
+ 'template.accent': '#1e3a5f',
+ 'template.logo': LOGO,
+ 'template.terms': '1. Prices are valid for 15 days from the date of this quotation.\n2. 50% advance on confirmation, balance before go-live.\n3. Annual subscription renews on the anniversary of activation.',
+ 'template.declaration': 'We declare that this invoice shows the actual price of the services described and that all particulars are true and correct.',
+ 'template.jurisdiction': 'Subject to Ernakulam jurisdiction',
+ 'template.footer_note': 'Thank you for your business. For support: support@tecnostac.com · +91 98470 12345',
+ 'template.signatory_label': 'For Tecnostac Solutions Pvt Ltd',
+}
+for (const [k, v] of Object.entries(settings)) setSetting(db, U, k, v)
+
+// Clients — one out-of-state (Karnataka, 29) to show IGST; one lead.
+const malabar = createClient(db, U, { name: 'Malabar Supermarket', stateCode: '32', address: 'MG Road, Kozhikode, Kerala 673001', status: 'active', contacts: [{ name: 'Rajesh Nair', phone: '9847011111', email: 'rajesh@malabarsuper.in' }] }).id
+const lulu = createClient(db, U, { name: 'Lulu Hyper Kochi', stateCode: '32', address: 'Edappally, Kochi, Kerala 682024', status: 'active', contacts: [{ name: 'Fathima K', phone: '9847022222', email: 'it@lulukochi.in' }] }).id
+const blr = createClient(db, U, { name: 'Bengaluru Fresh Mart', stateCode: '29', address: 'Indiranagar, Bengaluru, Karnataka 560038', status: 'active', contacts: [{ name: 'Anil Kumar', phone: '9880033333', email: 'anil@blrfresh.in' }] }).id
+createClient(db, U, { name: 'Green Valley Stores', stateCode: '32', address: 'Thrissur, Kerala', status: 'lead', contacts: [{ name: 'Suresh', phone: '9847044444' }] })
+
+// Modules + dated prices (GST-exclusive; the engine adds 18%).
+const pos = createModule(db, U, { code: 'POS', name: 'POS Billing', sac: '998314', allowedKinds: ['yearly', 'one_time'], quoteContent: ['Unlimited counters & cashiers', 'Offline billing with auto-sync', 'GST invoices + thermal print', 'Barcode & weighing-scale support'] }).id
+const inv = createModule(db, U, { code: 'INV', name: 'Inventory & GST Filing', sac: '998314', allowedKinds: ['yearly'], quoteContent: ['Stock, purchases, suppliers', 'GSTR-1 / 3B ready exports', 'Expiry & reorder alerts'] }).id
+const cloud = createModule(db, U, { code: 'CLOUD', name: 'Cloud Sync & Backup', sac: '998315', allowedKinds: ['monthly', 'yearly'], multiSubscription: true, quoteContent: ['Real-time multi-store sync', 'Nightly encrypted cloud backup'] }).id
+const sms = createModule(db, U, { code: 'SMS', name: 'SMS Pack', sac: '998414', allowedKinds: ['one_time'], quoteContent: ['Bill alerts & payment reminders to customers', 'Sender ID + DLT registration included'] }).id
+
+const FROM = '2026-04-01'
+setPrice(db, U, { moduleId: pos, kind: 'yearly', pricePaise: 18_000_00, effectiveFrom: FROM })
+setPrice(db, U, { moduleId: pos, kind: 'one_time', pricePaise: 25_000_00, effectiveFrom: FROM })
+setPrice(db, U, { moduleId: inv, kind: 'yearly', pricePaise: 12_000_00, effectiveFrom: FROM })
+setPrice(db, U, { moduleId: cloud, kind: 'monthly', pricePaise: 1_500_00, effectiveFrom: FROM })
+setPrice(db, U, { moduleId: sms, edition: 'SMS-50K', kind: 'one_time', pricePaise: 4_000_00, effectiveFrom: FROM })
+setPrice(db, U, { moduleId: sms, edition: 'SMS-1L', kind: 'one_time', pricePaise: 7_000_00, effectiveFrom: FROM })
+
+// Client 360 modules
+assignModule(db, U, { clientId: malabar, moduleId: pos, kind: 'yearly' })
+assignModule(db, U, { clientId: malabar, moduleId: inv, kind: 'yearly' })
+
+// A quotation for Malabar (POS yearly + Inventory + SMS 1-Lakh pack) → issued + share link.
+const qt = createDraft(db, U, {
+ docType: 'QUOTATION', clientId: malabar,
+ lines: [
+ { moduleId: pos, qty: 1, kind: 'yearly' },
+ { moduleId: inv, qty: 1, kind: 'yearly' },
+ { moduleId: sms, qty: 1, kind: 'one_time', edition: 'SMS-1L' },
+ ],
+ terms: 'Prices valid for 15 days. 50% advance on confirmation.',
+})
+const qtIssued = issueDocument(db, U, qt.id)
+markStatus(db, U, qtIssued.id, 'sent')
+mintShare(db, U, qtIssued.id, { expiresDays: 30 })
+
+// An invoice for Lulu (POS one-time + AMC) → issued, part-paid (drives the dashboard).
+const amcMod = (db.prepare(`SELECT id FROM module WHERE code='AMC'`).get() as { id: string }).id
+setPrice(db, U, { moduleId: amcMod, kind: 'yearly', pricePaise: 6_000_00, effectiveFrom: FROM })
+const inv1 = issueDocument(db, U, createDraft(db, U, {
+ docType: 'INVOICE', clientId: lulu,
+ lines: [{ moduleId: pos, qty: 1, kind: 'one_time' }, { moduleId: amcMod, qty: 1, kind: 'yearly' }],
+}).id)
+recordPayment(db, U, { clientId: lulu, receivedOn: '2026-07-05', mode: 'bank', reference: 'NEFT-88213', amountPaise: 20_000_00 })
+
+// An out-of-state quotation (IGST) for Bengaluru.
+issueDocument(db, U, createDraft(db, U, {
+ docType: 'QUOTATION', clientId: blr,
+ lines: [{ moduleId: pos, qty: 1, kind: 'yearly' }, { moduleId: cloud, qty: 12, kind: 'monthly' }],
+}).id)
+
+const shareToken = (db.prepare(`SELECT token FROM document_share LIMIT 1`).get() as { token: string }).token
+console.log('DEMO_READY')
+console.log('login: owner@tecnostac.com / demo-owner-2026')
+console.log('quotation_id:', qtIssued.id, 'doc_no:', qtIssued.docNo)
+console.log('invoice_id:', inv1.id, 'doc_no:', inv1.docNo)
+console.log('share_token:', shareToken)