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.

docs/SETUP.md

@@ -21,10 +21,23 @@
 
 3.  **Clasp Login**
     Authenticate with Google to allow pushing code.
-    ```bash
+
+    ```powershell
     clasp login
     ```
 
+4.  **Initialize Project**
+    You must either create a new Apps Script project or clone an existing one.
+    - **Option A: New Project**
+        ```bash
+        clasp create --type sheets --title "Product Inventory" --rootDir ./dist
+        ```
+    - **Option B: Existing Project**
+        ```bash
+        clasp clone <scriptId> --rootDir ./dist
+        ```
+    *Note: The `--rootDir ./dist` flag is crucial so that clasp knows where to look for files.*
+
 ## Google Sheets Configuration
 
 1.  **Create a Google Sheet** (or use existing).