[feat] Merge ComfyUI_devtools into ComfyUI_frontend (#5166)

## Summary
Merges ComfyUI devtools components into the ComfyUI frontend monorepo to
consolidate development tools.

## Changes
- Added devtools components from ComfyUI repository
- Integrated development nodes and utilities
- Consolidated fake model assets for testing

## Related Issues
Fixes #4683

## Testing
- Devtools components are now available within the frontend monorepo
- Development workflow remains consistent

Co-authored-by: Claude <noreply@anthropic.com>

.github/workflows/i18n-custom-nodes.yaml

@@ -32,11 +32,10 @@ jobs:
       with:
         repository: Comfy-Org/ComfyUI_frontend
         path: ComfyUI_frontend
-    - name: Checkout ComfyUI_devtools
-      uses: actions/checkout@v4
-      with:
-        repository: Comfy-Org/ComfyUI_devtools
-        path: ComfyUI/custom_nodes/ComfyUI_devtools
+    - name: Copy ComfyUI_devtools from frontend repo
+      run: |
+        mkdir -p ComfyUI/custom_nodes/ComfyUI_devtools
+        cp -r ComfyUI_frontend/tools/devtools/* ComfyUI/custom_nodes/ComfyUI_devtools/
     - name: Checkout custom node repository
       uses: actions/checkout@v4
       with:

.github/workflows/test-ui.yaml

@@ -27,12 +27,10 @@ jobs:
           repository: 'Comfy-Org/ComfyUI_frontend'
           path: 'ComfyUI_frontend'
 
-      - name: Checkout ComfyUI_devtools
-        uses: actions/checkout@v4
-        with:
-          repository: 'Comfy-Org/ComfyUI_devtools'
-          path: 'ComfyUI/custom_nodes/ComfyUI_devtools'
-          ref: 'd05fd48dd787a4192e16802d4244cfcc0e2f9684'
+      - name: Copy ComfyUI_devtools from frontend repo
+        run: |
+          mkdir -p ComfyUI/custom_nodes/ComfyUI_devtools
+          cp -r ComfyUI_frontend/tools/devtools/* ComfyUI/custom_nodes/ComfyUI_devtools/
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4