Add ComfyUI Registry publishing setup

- pyproject.toml with package metadata (v1.0.0)
- MIT license
- GitHub Actions workflow to auto-publish on pyproject.toml changes

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/publish.yml

@@ -0,0 +1,20 @@
+name: Publish to Comfy Registry
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - master
+    paths:
+      - "pyproject.toml"
+
+jobs:
+  publish-node:
+    name: Publish Custom Node to registry
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+      - name: Publish Custom Node
+        uses: Comfy-Org/publish-node-action@main
+        with:
+          personal_access_token: ${{ secrets.REGISTRY_ACCESS_TOKEN }}

LICENSE

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+MIT License
+
+Copyright (c) 2025 ethanfel
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

pyproject.toml

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+[project]
+name = "comfyui-vace-tools"
+version = "1.0.0"
+description = "Mask and control-frame generation nodes for WanVideo/VACE workflows — supports 10 generation modes, source trimming, and merge-back with optical flow blending."
+license = { file = "LICENSE" }
+requires-python = ">=3.10"
+dependencies = []
+
+[project.urls]
+Repository = "https://github.com/ethanfel/Comfyui-VACE-Tools"
+
+[tool.comfy]
+PublisherId = "ethanfel"
+DisplayName = "VACE Tools"
+Icon = ""