fix(mcp): remove unreliable node_reload / node_reload_all tools

For Docker nodes, reload bottoms out as a raw POST /containers/{id}/restart
to the Docker daemon, bypassing GNS3's start/stop lifecycle (uBridge
re-attach, console servers, NIC setup). The container restarts at the
Docker level but GNS3's plumbing goes out of sync, and the daemon call can
block up to the controller's 240s timeout — manifesting as "reload hangs /
no response". stop+start runs the full lifecycle and is reliable.

Remove the node_reload and node_reload_all MCP tools (tool functions,
handlers, NODE_TOOLS entry, tests, docs). The underlying REST endpoints
(POST /nodes/{id}/reload, POST /nodes/reload) are kept for native API
users. MCP callers should use node_stop + node_start (partial) or
close/open project (full restart) instead.

tests/api/routes/mcp/test_handlers.py

@@ -200,13 +200,6 @@ class TestNode:
             result = suspend_node_handler({"project_id": "p1", "node_ids": ["n1"]}, ctx)
             assert result[0]["status"] == "success"
 
-    def test_reload_batch(self, ctx):
-        from gns3server.api.routes.mcp.nodes import reload_node_handler
-        with patch(f"{BASE}.{self.mod}._get_connector") as m:
-            m.return_value = _mock_conn({"status": "started"})
-            result = reload_node_handler({"project_id": "p1", "node_ids": ["n1"]}, ctx)
-            assert result[0]["status"] == "success"
-
     def test_console(self, ctx):
         from gns3server.api.routes.mcp.nodes import get_node_console_info_handler
         with patch(f"{BASE}.{self.mod}._get_connector") as m:

tests/api/routes/mcp/test_tool_params.py

@@ -38,7 +38,6 @@ HANDLER_FILES = {
     "get_node_handler": "nodes.py",
     "start_node_handler": "nodes.py",
     "stop_node_handler": "nodes.py",
-    "reload_node_handler": "nodes.py",
     "suspend_node_handler": "nodes.py",
     "create_node_handler": "nodes.py",
     "delete_node_handler": "nodes.py",
@@ -51,7 +50,6 @@ HANDLER_FILES = {
     "start_all_nodes_handler": "nodes.py",
     "stop_all_nodes_handler": "nodes.py",
     "suspend_all_nodes_handler": "nodes.py",
-    "reload_all_nodes_handler": "nodes.py",
     "duplicate_node_handler": "nodes.py",
     "isolate_node_handler": "nodes.py",
     "unisolate_node_handler": "nodes.py",