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/services/binance.py

@@ -83,7 +83,21 @@ async def fetch_historical(asset: str, symbol: str, interval: str = "1m", limit:
 
 
 async def run_binance_ws():
-    """Connect to Binance kline stream with exponential back-off on disconnect."""
+    """Connect to Binance kline stream with exponential back-off on disconnect.
+
+    Binance routinely cycles connections every ~24h, and intermediate proxies
+    can drop without sending a close frame — both surface here as exceptions.
+    The reconnect must be fast (sub-second) so price ticks aren't visibly
+    stuck on the dashboard during a hiccup.
+
+    Resilience defenses:
+      * ping_interval/ping_timeout — peer-of-record liveness check (websockets lib)
+      * close_timeout — bound how long we wait for a clean close handshake
+      * open_timeout — bound the initial connect handshake so a hung TCP doesn't
+        permanently park this task
+      * max_queue — drop frames if downstream can't keep up rather than back
+        the WS receive buffer up indefinitely
+    """
     # Pre-fill with historical data
     await fetch_historical("BTC", "btcusdt", limit=500)
     await fetch_historical("ETH", "ethusdt", limit=500)
@@ -96,15 +110,27 @@ async def run_binance_ws():
                 settings.binance_ws_url,
                 ping_interval=20,
                 ping_timeout=10,
+                close_timeout=5,
+                open_timeout=10,
+                max_queue=128,
             ) as ws:
                 backoff = 1  # reset on successful connection
                 logger.info("Binance WebSocket connected.")
                 async for message in ws:
                     await _process_message(message)
+            # If we exit the `async with` without an exception, the server
+            # closed normally — reconnect immediately rather than backing off.
+            logger.info("Binance WebSocket closed cleanly, reconnecting immediately.")
         except asyncio.CancelledError:
             logger.info("Binance WebSocket task cancelled.")
             return
         except Exception as exc:
-            logger.error("Binance WebSocket error: %s. Reconnecting in %ds.", exc, backoff)
+            # Use exception() once so a TRACE-back-with-context is logged the
+            # first time something interesting happens; subsequent same-error
+            # retries log compactly to avoid drowning the log.
+            logger.warning(
+                "Binance WebSocket error: %s (%s). Reconnecting in %ds.",
+                type(exc).__name__, exc, backoff,
+            )
             await asyncio.sleep(backoff)
             backoff = min(backoff * 2, 60)