fix: MCP reconnect via tool passes only server_id to connect_server (#1385)

* fix: MCP reconnect via tool passes only server_id to connect_server

connect_server requires name, transport, command, args, env, and url
but the reconnect path in do_manage_mcp only passed the server_id,
causing a TypeError on every reconnect attempt. Mirror the pattern
used in mcp_routes.py reconnect_server.

* test: verify MCP reconnect passes full server config to connect_server

Mocks the MCP manager and DB to assert that do_manage_mcp reconnect
passes name, transport, command, args, env, and url — not just the
server_id.

src/tool_implementations.py

@@ -1215,7 +1215,17 @@ async def do_manage_mcp(content: str, owner: Optional[str] = None) -> Dict:
             try:
                 srv = db2.query(McpServer).filter(McpServer.id == sid).first()
                 if srv:
-                    await mcp.connect_server(sid)
+                    _args = json.loads(srv.args) if srv.args else []
+                    _env = json.loads(srv.env) if srv.env else {}
+                    await mcp.connect_server(
+                        server_id=sid,
+                        name=srv.name,
+                        transport=srv.transport,
+                        command=srv.command,
+                        args=_args,
+                        env=_env,
+                        url=srv.url,
+                    )
                     st = mcp.get_server_status(sid)
                     return {"response": f"Reconnected '{srv.name}' ({st.get('tool_count', 0)} tools)", "exit_code": 0}
                 return {"error": f"Server {sid} not found", "exit_code": 1}