feat: implement Phase 2 Automation & CI (validate_skills, generate_index, ci.yml) [skip ci]

.github/workflows/ci.yml

@@ -0,0 +1,34 @@
+name: Skills Registry CI
+
+on:
+  push:
+    branches: ["main", "feat/*"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  validate-and-build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+
+      - name: 🔍 Validate Skills (Strict Mode)
+        run: |
+          python3 scripts/validate_skills.py --strict
+
+      - name: 🏗️ Generate Index
+        run: |
+          python3 scripts/generate_index.py
+
+      - name: 📝 Update README
+        run: |
+          python3 scripts/update_readme.py
+
+      - name: 🚨 Check for Uncommitted Drift
+        run: |
+          git diff --exit-code || (echo "❌ Detected uncommitted changes in README.md or skills_index.json. Please run scripts locally and commit." && exit 1)