Pre-launch hardening: KOL module, Telegram, scanners, WS resilience

Big-picture changes since b941223:

KOL pipeline (new) — Substack/podcast/blog RSS → AI ticker extraction →
on-chain wallet diff → talks-vs-trades divergence detection. Daily polls,
19 feeds, divergence emits Post + Telegram fan-out.

Telegram push (new) — walletless free tier + wallet-linked Pro upgrade,
in-bot preference commands (/trump /btc /funding /kol /conf /quiet),
signed-envelope API for dashboard. Disconnect-wallet keeps free
subscription.

BTC funding-rate reversal scanner (new) — hourly cron, 30d cumulative
funding threshold + mean-revert + 7d price confirm, emits via
/api/signals/ingest. BTC bottom-reversal scanner promoted to System 2.

WS broadcast rewrite — per-client send timeout + parallel fan-out
(asyncio.gather). Fixes "Binance WS no close frame" reconnect storms +
APScheduler 11-min job misses, both caused by one slow client stalling
the kline loop.

Error visibility — three silent-error sites (trumpstruth/truth_social
fetchers, funding_reversal scanner) now include exception type name so
httpx ConnectError-style empty-message errors stop logging blank lines.
Telegram bot loop now classifies ReadTimeout vs network vs unknown +
logger.exception for the unknown bucket.

Security hygiene — trumpsignal.db untracked from git (held subscriber
wallets + encrypted HL keys + 22 bot trades); .gitignore now blocks
*.db/.next/backups. CORS only allows FRONTEND_URL in production.

New ops scripts —
  - scripts/preflight.py: env/DB/Telegram/AI auth verification gate
  - scripts/backup_db.sh: cron-friendly daily DB backup (SQLite + Postgres)
  - scripts/seed_kol_wallets.py: idempotent KOL on-chain wallet seeder

15 new Alembic migrations (007-021) covering convex strategy fields,
phase-1 safety, two-system frozen exits, invalidation prices, dynamic
SYS2 leverage, staged de-risk + pyramiding, peak gain tracking, risk
mode, auto-trade + grow flags, KOL module, KOL on-chain, KOL divergence,
Telegram bindings + walletless.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

app/scrapers/trumpstruth.py

@@ -53,7 +53,10 @@ async def _fetch_feed() -> Optional[str]:
             resp.raise_for_status()
             return resp.text
     except Exception as exc:
-        logger.warning("Failed to fetch trumpstruth.org feed: %s", exc)
+        # Include type name — httpx often raises bare ConnectError/RemoteProtocolError
+        # with empty .args, which formats as just "Failed to fetch ..." with no body.
+        logger.warning("Failed to fetch trumpstruth.org feed: %s (%s)",
+                       type(exc).__name__, exc)
         return None
 
 
@@ -141,6 +144,14 @@ async def poll_trumpstruth(db_session_factory) -> None:
                     await manager.broadcast(_post_to_ws_payload(post))
                     logger.info("[trumpstruth] beat CNN — new post id=%d: %s",
                                 post.id, post.text[:60])
+                    # Telegram fan-out — matches truth_social.py. Without this,
+                    # whichever poller wins the race determines whether users
+                    # get pushed — flaky 50% delivery.
+                    try:
+                        from app.services.telegram import notify_signal
+                        notify_signal(post)
+                    except Exception as exc:
+                        logger.warning("Telegram notify failed for post %d: %s", post.id, exc)
                     try:
                         from app.services.bot_engine import process_post
                         await process_post(post, db)