fix: pre-launch hardening — HYPE price feed, KOL wallet cleanup, Telegram Trump alert, rate limiting, brittle test

Batch of the pre-launch audit campaign (BUG-01…14 plus three new features):

Pricing / TP-SL protection
- Add app/services/hl_price_feed.py: supplemental HL allMids poller for
  HL-native assets (HYPE, PURR) not listed on Binance. Pumps price_store +
  tp_sl_monitor.on_price_tick so bot trades on these assets keep full
  stop-loss / take-profit / trailing protection instead of max-hold only.
- Wire feed into main.py lifespan (startup task + graceful shutdown cancel).

Telegram
- Add format_trump_mention + PATH B in _dispatch: crypto-relevant Trump
  posts with no directional signal (relevant=True, signal=hold) now alert
  the public channel only (no per-subscriber noise).
- Rate limiter (slowapi) on the API; assorted bot/digest fixes.

KOL on-chain
- seed_kol_wallets.py: KOL_FEEDS coverage cross-check; reversibly deactivate
  orphaned wallets (handle not in KOL_FEEDS → can never produce divergence)
  so the scanner stops burning cycles on them.

Tests / misc
- Fix brittle test_macro_ahr999_uses_same_formula_as_scanner: mock now uses
  realistic ms timestamps so the in-progress-day drop fires, matching the
  fetcher's bar count (was 0.3179 vs 0.3178 off-by-one).
- Refresh stale notify_signal comment in truth_social.py.

Frontend reduce-action type fix lives in the sibling repo.

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

app/services/tp_sl_monitor.py

@@ -187,7 +187,18 @@ def register_trade(
 
 
 def unregister(trade_id: int) -> None:
-    _watched.pop(trade_id, None)
+    wt = _watched.pop(trade_id, None)
+    # Flush the latest peak to DB on unregister so a restart between the last
+    # throttled write and this point doesn't lose progress.
+    if wt is not None and wt.peak_gain_pct > wt.peak_persisted:
+        task = asyncio.create_task(_persist_peak(trade_id, wt.peak_gain_pct))
+        _background_tasks.add(task)
+        task.add_done_callback(_background_tasks.discard)
+    # Clean up the per-trade close lock from bot_engine to prevent memory leak.
+    # Trades closed via reconciler bypass close_and_finalize, so the lock would
+    # otherwise remain in the dict forever.
+    from app.services.bot_engine import _close_locks
+    _close_locks.pop(trade_id, None)
 
 
 def on_price_tick(asset: str, price: float) -> None: