End every wait in flight when the tool runner stops (issue 745)

Closing the console shut its server down with a context that never ends, so a stop or restart of
the tool runner waited on any mesh_wait in flight for up to ten minutes. The server's base context
is now cancelled first, ending every wait at once, with a five-second shutdown as a backstop
(second review of issue 745).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

node-tools/module.json

@@ -5,6 +5,13 @@
   "invokes": [
     "*"
   ],
+  "waits": [
+    "mesh-knowledge.reviewed",
+    "mesh-delivery.transition",
+    "gitea.forge.status",
+    "mesh-controller.checked",
+    "operator-channel.decided.claude-code"
+  ],
   "provides": [
     {
       "name": "mcp-endpoint",