[GSOC 2025] Translation Tracker github action

.github/actions/translation-tracker/README.md

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+# p5.js Translation Tracker
+
+Automatically tracks translation status for p5.js website examples, creates GitHub issues for outdated translations, and shows banners on the website.
+
+## Features
+
+- Detects outdated/missing translations using Git commit comparison (currently focused on Examples content)
+- Creates GitHub issues with diff snippets and action checklists
+- Shows localized banners on outdated translation pages
+- Supports Spanish, Hindi, Korean, and Chinese Simplified
+
+## File Structure
+
+```
+.github/actions/translation-tracker/
+├── index.js           # Main tracker logic
+├── package.json       # Dependencies
+├── test-local.js      # Local testing
+
+src/layouts/ExampleLayout.astro              # Banner integration
+src/components/OutdatedTranslationBanner/    # Banner component
+public/translation-status/examples.json      # Generated status (build artifact)
+```
+
+## Usage
+
+### Local Testing
+```bash
+cd .github/actions/translation-tracker && npm install
+node test-local.js
+```
+
+### Scan All Files (File-based)
+```bash
+node .github/actions/translation-tracker/index.js
+```
+
+### Scan All Files (GitHub API + Create Issues)
+```bash
+GITHUB_TOKEN=your_token GITHUB_REPOSITORY=owner/repo node .github/actions/translation-tracker/index.js
+```
+
+### GitHub Actions Workflow
+Create `.github/workflows/translation-sync.yml`:
+
+```yaml
+name: Translation Sync Tracker
+
+on:
+  push:
+    branches: [main, week2]
+    paths: ['src/content/examples/en/**']
+  workflow_dispatch:
+
+jobs:
+  track-translation-changes:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Install translation tracker dependencies
+        run: cd .github/actions/translation-tracker && npm install
+
+      - name: Run translation tracker
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: node .github/actions/translation-tracker/index.js
+```
+
+## Environment Variables
+
+- `GITHUB_TOKEN` - Required for GitHub API and issue creation
+- `GITHUB_REPOSITORY` - Format: `owner/repo` (auto-detected in Actions)
+
+## What It Does
+
+1. **Scans** English example files for changes
+2. **Compares** with translation files using Git commits
+3. **Creates** GitHub issues for outdated translations with:
+   - Diff snippets showing what changed
+   - Links to files and comparisons
+   - Action checklist for translators
+   - Proper labels (`needs translation`, `lang-es`, etc.)
+4. **Generates** manifest file for website banner system
+5. **Shows** localized banners on outdated translation pages
+
+## Sample Output
+
+```
+📝 Checking 61 English example file(s)
+
+📊 Translation Status Summary:
+   🔄 Outdated: 48
+   ❌ Missing: 0
+   ✅ Up-to-date: 196
+
+🎫 GitHub issues created: 12
+   - Issue #36: Spanish, Hindi, Korean, Chinese Simplified need updates
+   - URL: https://github.com/owner/repo/issues/36
+
+🗂️ Wrote translation manifest: public/translation-status/examples.json
+```
+
+## Dependencies
+
+- `@actions/core`, `@actions/github`, `@octokit/rest`
+- Node.js built-ins: `fs`, `path`, `child_process`