Fix run_session_now: log all exceptions, never silently drop errors

- First log call moved to very top of run_session_now() so user always
  sees the task started, even if subsequent DB/engine calls fail
- Entire function body wrapped in try/except: errors go to scheduler log
  instead of vanishing in asyncio's unhandled-exception machinery
- Endpoint wraps create_task() in a logging shim (_task()) for the same reason
- 'already ran' path now logs a visible warning instead of silent return

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/web/orb_trading_service.py

@@ -489,8 +489,14 @@ class ORBAutoScheduler:
         After detection, injects the session's remaining today-events into the
         active schedule so breakout checks, stop checks, and EOD exit still fire.
 
-        Returns a summary dict or {"error": "<reason>"} on failure.
+        All exceptions are caught and logged so the fire-and-forget task never
+        silently vanishes.
         """
+        # Log immediately so the user knows the task started — even before any
+        # DB / engine work that might fail.
+        self._log(f"🔄 지금 시작 요청: {session_name}")
+
+        try:
             from apps.orb_trader.state import ORBStateManager
 
             now_et   = self._now_et()
@@ -500,26 +506,28 @@ class ORBAutoScheduler:
             state_mgr = ORBStateManager(self._db_path)
             session = state_mgr.get_session(session_name)
             if session is None:
+                self._log(f"  ❌ 세션 '{session_name}' 을 DB에서 찾을 수 없음")
                 return {"error": f"Session '{session_name}' not found"}
 
-        # Already ran if daily_state.phase is set (engine wrote it during orb_detect)
+            # Already ran if daily_state.phase is beyond idle
             daily = state_mgr.get_daily_state(session.session_id, date_str)
-        if daily.phase:
-            return {"error": f"Session '{session_name}' already ran today (phase={daily.phase})"}
+            if daily.phase not in ("idle", "", None):
+                self._log(f"  ⚠ {session_name}: 오늘 이미 실행됨 (phase={daily.phase})")
+                return {"error": f"already ran today (phase={daily.phase})"}
 
-        self._log(f"🔄 지금 시작: {session_name} — ORB 감지 실행 중 (현재 시세 기준)...")
+            self._log(f"  ORB 감지 실행 중 (현재 시세 기준)...")
 
-        # Phase 1: Run ORB detection (fetches historical bars for ORB window)
+            # Phase 1: ORB detection — fetches historical bars for the ORB window
             await self._run_trading("orb_detect", [session_name], date_str)
 
-        # Phase 2: Immediately check for breakouts using current snapshot prices.
-        # This is the "지금 시작" core — regardless of whether scheduled breakout
-        # windows have already passed, we check current price right now.
-        self._log(f"🔍 {session_name}: 현재 가격으로 브레이크아웃 즉시 체크...")
+            # Phase 2: Immediate breakout check using current snapshot prices.
+            # This is the core of "지금 시작" — the scheduled breakout windows have
+            # already passed, so we check once manually right now.
+            self._log(f"  현재 가격으로 브레이크아웃 즉시 체크...")
             await self._run_trading("breakout", [session_name], date_str)
 
             # Phase 3: Inject remaining future events (stop checks + EOD exit only).
-        # Skip all breakout events — we just ran the manual check above.
+            # Mark all scheduled breakout events as done — we already ran one above.
             params = _load_session_params(self._db_path, session_name)
             all_events = build_schedule(today, **params)
             for ev in all_events:
@@ -530,7 +538,6 @@ class ORBAutoScheduler:
             injected = 0
             for ev in all_events:
                 if ev["kind"] == "breakout":
-                # Already handled by the manual check above
                     self._completed.add(ev["name"])
                 elif ev["et_dt"] <= now_et:
                     self._completed.add(ev["name"])
@@ -539,10 +546,15 @@ class ORBAutoScheduler:
                     injected += 1
 
             self._today_schedule.sort(key=lambda e: (e["et_dt"], e.get("session", "")))
-        self._log(f"✓ {session_name}: {injected} 이벤트 추가됨 (스톱/EOD 일정)")
-
+            self._log(f"  ✓ 완료 — 스톱/EOD 이벤트 {injected}개 추가됨")
             return {"session": session_name, "injected": injected}
 
+        except Exception as exc:
+            tb = traceback.format_exc()
+            self._log(f"  ❌ 지금 시작 오류: {exc}")
+            log.error("run_session_now error: %s\n%s", exc, tb)
+            return {"error": str(exc)}
+
     # ── Main scheduler loop ────────────────────────────────────────────────────
 
     async def _run_loop(self) -> None:

apps/web/routers/orb_trading.py

@@ -169,8 +169,17 @@ async def run_session_today(session_id: str) -> dict[str, Any]:
             detail="스케줄러가 실행 중이 아닙니다. 먼저 자동 스케줄러를 시작하세요.",
         )
 
-    # Fire-and-forget — detection takes ~1–2 min; we return immediately
-    _asyncio.create_task(orb_auto_scheduler.run_session_now(session.session_name))
+    # Fire-and-forget — detection takes ~1–2 min; we return immediately.
+    # Wrap in a logging shim so unhandled exceptions surface in the scheduler log,
+    # not silently in Python's asyncio warning machinery.
+    async def _task() -> None:
+        try:
+            await orb_auto_scheduler.run_session_now(session.session_name)
+        except Exception as exc:
+            import traceback as _tb
+            orb_auto_scheduler._log(f"❌ run_today 작업 예외: {exc}\n{_tb.format_exc()}")
+
+    _asyncio.create_task(_task())
 
     return {
         "session_id": session.session_id,