Add Engine realtime services and agent WebSocket handlers

Data/Engine/interfaces/ws/job_management/events.py

@@ -1,19 +1,30 @@
-"""Job management WebSocket event placeholders for the Engine."""
+"""Job management WebSocket event handlers."""
 
 from __future__ import annotations
 
-from typing import Any
+import logging
+from typing import Any, Optional
+
+from Data.Engine.services.container import EngineServiceContainer
 
 
-def register(socketio: Any) -> None:
-    """Register job management namespaces on *socketio*.
-
-    Concrete handlers will be migrated in later phases.
-    """
-
+def register(socketio: Any, services: EngineServiceContainer) -> None:
     if socketio is None:  # pragma: no cover - guard
         return
-    return
+
+    handlers = _JobEventHandlers(socketio, services)
+    socketio.on_event("quick_job_result", handlers.on_quick_job_result)
+
+
+class _JobEventHandlers:
+    def __init__(self, socketio: Any, services: EngineServiceContainer) -> None:
+        self._socketio = socketio
+        self._services = services
+        self._log = logging.getLogger("borealis.engine.ws.jobs")
+
+    def on_quick_job_result(self, data: Optional[dict]) -> None:
+        self._log.info("quick-job-result received; scheduler migration pending")
+        # Step 10 will introduce full persistence + broadcast logic.
 
 
 __all__ = ["register"]