Pull each SMS client's actual credit balance from the provider panel instead of
manual entry. sms.balance_api_url (dated setting, default 164.52.195.161/API/
BalAlert.aspx) returns pipe-delimited code|STATUS|payload; parseBalanceResponse
reads the trailing number and flags ERROR lines, never guessing. Uses each
subscription's already-imported username/password_enc — the automated path decrypts
directly (no reveal-audit spam) and audits sms_balance ONLY when it changes;
per-poll telemetry lands in the unaudited sms_balance_check table (SQLite schema +
PG migration 010). Managerial 'Refresh from gateway' button (POST /reports/sms-
balances/refresh) + per-client refresh; scheduler does one pass per day
(maybeRefreshSmsDaily). Low-balance alert on the Dashboard + cockpit tile. Needs
HQ_SECRET_KEY (import-time key) to decrypt — no-ops with a clear message otherwise,
never stores plaintext. Parser unit-tested; full suite 408 green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>