feat: add troubleshooting side panel and advanced queue controls

- Implemented a global toggle to enable/disable background queue processing.
- Added a Side Panel (Sidebar.html) to view pending edits.
- Added per-item controls: 'Delete' to remove from queue, 'Push' to force update.
- Updated 'onEditQueue.ts' with robust error handling for batch processing.
- Updated documentation (README, ARCHITECTURE) to reflect new features.
- Fixed 'clasp' deployment issues by cleaning up manifest management.

src/appsscript.json

@@ -0,0 +1,12 @@
+{
+  "timeZone": "America/Denver",
+  "dependencies": {
+  },
+  "exceptionLogging": "STACKDRIVER",
+  "runtimeVersion": "V8",
+  "oauthScopes": [
+    "https://www.googleapis.com/auth/spreadsheets",
+    "https://www.googleapis.com/auth/script.external_request",
+    "https://www.googleapis.com/auth/script.container.ui"
+  ]
+}