feat: notify on exec exit

src/config/legacy.rules.ts

@@ -85,6 +85,10 @@ export const LEGACY_CONFIG_RULES: LegacyConfigRule[] = [
     message:
       "agent.* was moved; use agents.defaults (and tools.* for tool/elevated/exec settings) instead (auto-migrated on load).",
   },
+  {
+    path: ["tools", "bash"],
+    message: "tools.bash was removed; use tools.exec instead (auto-migrated on load).",
+  },
   {
     path: ["agent", "model"],
     message: