chore: add debug comment to diagnose mode

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.claude/settings.local.json

@@ -0,0 +1,9 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(mkdir:*)",
+      "mcp__serena__activate_project",
+      "mcp__serena__find_symbol"
+    ]
+  }
+}