Add deploy-static reusable workflow

.gitea/workflows/deploy-static.yml

@@ -0,0 +1,78 @@
+name: Deploy static site to devfarm
+
+# Reusable workflow: installs, builds, and rsyncs dist output to the
+# devsites share so Caddy serves it at <site>.dev.clubbabyseal.com.
+#
+# Usage in a caller workflow:
+#   jobs:
+#     deploy:
+#       uses: ringmaster/tower/.gitea/workflows/deploy-static.yml@main
+#       with:
+#         site: myapp          # → https://myapp.dev.clubbabyseal.com
+#         build-command: npm run build
+#
+# See docs/deploy-static.md for full reference.
+
+on:
+  workflow_call:
+    inputs:
+      site:
+        description: >
+          Subdomain / folder name under /mnt/user/devsites/. The built output
+          lands in /mnt/user/devsites/<site>/dist/ and is served at
+          https://<site>.dev.clubbabyseal.com by Caddy.
+        required: true
+        type: string
+      install-command:
+        description: Dependency install command. Set to empty string to skip.
+        required: false
+        default: npm ci
+        type: string
+      build-command:
+        description: Command that produces the dist/ output.
+        required: false
+        default: npm run build
+        type: string
+      dist-dir:
+        description: Build output directory (relative to working-directory).
+        required: false
+        default: dist
+        type: string
+      working-directory:
+        description: Directory to run install and build in.
+        required: false
+        default: .
+        type: string
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install dependencies
+        if: inputs.install-command != ''
+        working-directory: ${{ inputs.working-directory }}
+        run: ${{ inputs.install-command }}
+
+      - name: Build
+        working-directory: ${{ inputs.working-directory }}
+        run: ${{ inputs.build-command }}
+
+      - name: Deploy to devfarm
+        run: |
+          SITE="${{ inputs.site }}"
+          SRC="${{ inputs.working-directory }}/${{ inputs.dist-dir }}"
+          TARGET="/mnt/user/devsites/${SITE}/dist"
+
+          # Validate site name: alphanumeric + hyphens only, no path traversal.
+          if ! echo "$SITE" | grep -qE '^[a-z0-9-]+$'; then
+            echo "ERROR: site name must match [a-z0-9-]+"
+            exit 1
+          fi
+
+          mkdir -p "$TARGET"
+          rsync -a --delete "${SRC}/" "${TARGET}/"
+          echo "Deployed $SRC → $TARGET"
+          echo "Live at: https://${SITE}.dev.clubbabyseal.com"