Initial commit from agent

core/websocket_manager.py

@@ -0,0 +1,24 @@
+"""
+WebSocket connection manager — handles multiple simultaneous clients.
+"""
+from fastapi import WebSocket
+from typing import List
+
+class ConnectionManager:
+    def __init__(self):
+        self.active_connections: List[WebSocket] = []
+
+    async def connect(self, websocket: WebSocket):
+        await websocket.accept()
+        self.active_connections.append(websocket)
+
+    def disconnect(self, websocket: WebSocket):
+        self.active_connections.remove(websocket)
+
+    async def broadcast_json(self, data: dict):
+        for connection in self.active_connections:
+            await connection.send_json(data)
+
+    async def broadcast_bytes(self, data: bytes):
+        for connection in self.active_connections:
+            await connection.send_bytes(data)