Add deploy gitea workflow

.gitea/workflows/deploy.yml

@@ -0,0 +1,59 @@
+name: Deploy
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    name: Build and Deploy
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: latest
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Build project
+        run: bun run build
+
+      - name: Deploy to pages branch
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          GITEA_SERVER: ${{ gitea.server_url }}
+          REPO: ${{ gitea.repository }}
+          ACTOR: ${{ gitea.actor }}
+        run: |
+          # Configure git
+          git config --global user.name "gitea-actions[bot]"
+          git config --global user.email "gitea-actions[bot]@users.noreply.gitea.io"
+
+          # Save dist outside the working tree before switching branches
+          TMP_DIR=$(mktemp -d)
+          cp -r ./dist/. "$TMP_DIR/"
+
+          # Create a fresh orphan pages branch (no history, clean slate every deploy)
+          git checkout --orphan pages
+          git rm -rf . >/dev/null 2>&1 || true
+          find . -mindepth 1 -maxdepth 1 ! -name '.git' -exec rm -rf {} +
+
+          # Copy build output into the branch root
+          cp -r "$TMP_DIR/." .
+
+          git add -A
+          git commit -m "Deploy: ${{ gitea.sha }}" || { echo "Nothing to commit"; exit 0; }
+
+          # Force-push to pages branch
+          git push --force "https://${ACTOR}:${GITEA_TOKEN}@${GITEA_SERVER#https://}/${REPO}.git" pages