SKANDR Telegram Relay V3.3 validation
Date: 2026-08-24

PASS node --check server.js
PASS node --check signal_parser.js
PASS node --check state_store.js
PASS node --check diagnose.js
PASS existing parser tests
PASS minute-only scheduling: printed UTC+6 ignored
PASS minute-only scheduling: printed UTC+3 ignored
PASS minute rollover to next hour
PASS dashboard source add survives server restart
PASS dashboard source edit survives server restart
PASS dashboard source delete survives server restart
PASS persistence health reports writable=true in local test
PASS dashboard JavaScript syntax

Key fixes:
- persistent absolute state path anchored to __dirname
- state backup and write verification
- no startup source rename/re-add after initialization
- minute-only scheduling relative to Telegram message.date
- parallel Telegram source polling
- 20 ms scheduler tick
- per-signal recovery chain / parallel delivery metadata
- persistent desired admin controls replayed on reconnect
- Telegram poll failure recovery