Add dynamic analyst runtime updates and deployment guides

backend/runtime/manager.py

@@ -102,12 +102,22 @@ class TradingRuntimeManager:
         self._persist_snapshot()
         return entry
 
-    def register_agent(self, agent_id: str) -> AgentRuntimeState:
-        state = AgentRuntimeState(agent_id=agent_id)
+    def register_agent(
+        self,
+        agent_id: str,
+        display_name: Optional[str] = None,
+    ) -> AgentRuntimeState:
+        state = AgentRuntimeState(agent_id=agent_id, display_name=display_name)
         self.registry.register(agent_id, state)
         self._persist_snapshot()
         return state
 
+    def unregister_agent(self, agent_id: str) -> Optional[AgentRuntimeState]:
+        state = self.registry.unregister(agent_id)
+        if state is not None:
+            self._persist_snapshot()
+        return state
+
     def register_pending_approval(self, approval_id: str, payload: Dict[str, Any]) -> None:
         payload.setdefault("status", "pending")
         payload.setdefault("created_at", datetime.now(UTC).isoformat())