Notification upgrades: lifecycle, configurable levels, summaries

- NOTIFY_LEVELS chooses which event levels are sent (default trade,error).
- NOTIFY_LIFECYCLE sends explicit start/stop messages; the kill switch always
  notifies at error level.
- SUMMARY_INTERVAL_MINUTES sends a periodic portfolio summary (equity, per
  strategy P&L, allocation, halted state) via a background task started with
  the run and stopped on stop/kill/shutdown.
- Wires the new vars plus the go-live vars through both compose files and the
  deploy workflow. Adds tests.

backend/app/runtime.py

@@ -56,7 +56,7 @@ class Runtime:
         self._feed_factory = feed_factory
         self._broker_factory = broker_factory
         self.notifier = notifier if notifier is not None else notifier_factory(settings)
-        self.notify_levels = notify_levels or {"trade", "error"}
+        self.notify_levels = notify_levels or settings.notify_level_set or {"trade", "error"}
         self.manager = MultiStrategyManager(
             store=self.store,
             settings=settings,
@@ -66,6 +66,7 @@ class Runtime:
         self.manager.set_publisher(self._broadcast)
         self._subscribers: set[asyncio.Queue] = set()
         self._notify_tasks: set[asyncio.Task] = set()
+        self._summary_task: asyncio.Task | None = None
 
     # The first (usually only) engine, kept for the single-strategy API and
     # backwards compatibility with existing callers and tests.
@@ -93,16 +94,56 @@ class Runtime:
             self._maybe_notify(payload["data"])
 
     def _maybe_notify(self, event: dict[str, Any]) -> None:
-        if self.notifier is None or event.get("level") not in self.notify_levels:
+        if event.get("level") not in self.notify_levels:
+            return
+        self.notify_now(event.get("level", "info"), event.get("message", ""))
+
+    def notify_now(self, level: str, message: str) -> None:
+        """Send a notification, ignoring level filtering (best-effort)."""
+        if self.notifier is None:
             return
-        message = event.get("message", "")
         try:
-            task = asyncio.create_task(self.notifier.send(event["level"], message))
+            task = asyncio.create_task(self.notifier.send(level, message))
         except RuntimeError:  # no running loop (e.g. sync test context)
             return
         self._notify_tasks.add(task)
         task.add_done_callback(self._notify_tasks.discard)
 
+    def _start_summary_loop(self) -> None:
+        minutes = self.settings.summary_interval_minutes
+        if minutes <= 0 or self.notifier is None:
+            return
+        self._stop_summary_loop()
+        self._summary_task = asyncio.create_task(self._summary_loop(minutes * 60))
+
+    def _stop_summary_loop(self) -> None:
+        if self._summary_task is not None:
+            self._summary_task.cancel()
+            self._summary_task = None
+
+    async def _summary_loop(self, interval_seconds: float) -> None:
+        try:
+            while True:
+                await asyncio.sleep(interval_seconds)
+                self.notify_now("summary", self.summary_message())
+        except asyncio.CancelledError:
+            raise
+
+    def summary_message(self) -> str:
+        status = self.manager.status()
+        lines = [
+            f"Portfolio: equity {status.equity:,.2f} "
+            f"({status.total_pnl:+,.2f}) across {len(status.strategies)} strategies"
+        ]
+        for s in status.strategies:
+            state = "HALTED" if s.halted else ("running" if status.running else "stopped")
+            lines.append(
+                f"- {s.strategy_name or s.strategy_key} "
+                f"({s.allocation * 100:.0f}%): {s.equity:,.2f} ({s.total_pnl:+,.2f}) "
+                f"[{state}]"
+            )
+        return "\n".join(lines)
+
     # --- lifecycle ----------------------------------------------------
     async def start(
         self,
@@ -136,18 +177,35 @@ class Runtime:
         )
         if not check.ok:
             raise ValueError("live trading blocked: " + "; ".join(check.blockers))
-        return await self.manager.start(request)
+        status = await self.manager.start(request)
+        if self.settings.notify_lifecycle:
+            names = ", ".join(s.strategy_name or s.strategy_key for s in status.strategies)
+            self.notify_now(
+                "info",
+                f"Started {len(status.strategies)} strategy(ies) in {self.settings.mode} "
+                f"mode: {names}",
+            )
+        self._start_summary_loop()
+        return status
 
     def live_check(self) -> dict:
         return check_live_ready(self.settings).as_dict()
 
     async def stop(self) -> StatusOut:
+        had_runs = bool(self.manager.runs)
         await self.manager.stop()
+        self._stop_summary_loop()
+        if had_runs and self.settings.notify_lifecycle:
+            self.notify_now("info", "Stopped all strategies")
         engine = self.engine
         return engine.status() if engine is not None else self._idle_status()
 
     async def kill(self, reason: str = "manual kill switch") -> StatusOut:
+        had_runs = bool(self.manager.runs)
         await self.manager.kill(reason)
+        self._stop_summary_loop()
+        if had_runs:
+            self.notify_now("error", f"KILL SWITCH: {reason}")
         engine = self.engine
         return engine.status() if engine is not None else self._idle_status()
 
@@ -209,6 +267,7 @@ class Runtime:
         )
 
     async def shutdown(self) -> None:
+        self._stop_summary_loop()
         await self.manager.shutdown()
         if self.notifier is not None:
             await self.notifier.close()