Remove GitHub Actions auto-publish workflow

- comfy node publish requires ComfyUI workspace which isn't available in GitHub Actions
- Manual publishing is working correctly via local environment
- Added node.zip to .gitignore (publishing artifact)

Publishing should be done manually:
1. cd to repo directory
2. source ~/comfy-env/bin/activate
3. comfy node publish

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

.github/workflows/publish_action.yml

@@ -1,31 +0,0 @@
-name: Publish to Comfy Registry
-
-on:
-  push:
-    paths:
-      - 'pyproject.toml'
-    branches:
-      - main
-
-jobs:
-  publish:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.11'
-
-      - name: Install Comfy CLI
-        run: |
-          pip install comfy-cli
-
-      - name: Publish to Comfy Registry
-        env:
-          REGISTRY_ACCESS_TOKEN: ${{ secrets.REGISTRY_ACCESS_TOKEN }}
-        run: |
-          comfy node publish

.gitignore

@@ -61,3 +61,6 @@ env/
 
 # Logs
 *.log
+
+# ComfyUI Registry publishing artifacts
+node.zip