feat: add React UI for rpm.lair.cafe

- Vite + React + SWC + TypeScript SPA with react-router and
  react-bootstrap
- Dark/light/system theme with Bootstrap 5.3 data-bs-theme
- Home page with repo setup instructions and copyable code blocks
- Package list and detail pages driven by packages.json
- Python script to generate packages.json from repodata XML
- Nginx config updated for SPA fallback, asset caching, removed
  autoindex
- New deploy-ui workflow triggered on ui/ or nginx config changes,
  requires runners with nvm label
- packages.json generation added to publish job after createrepo_c
- Runner setup docs for nvm and sequoia-sq added to readme

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/build-release.yml

@@ -190,3 +190,12 @@ jobs:
         run: |
           ssh "gitea_ci@${RPM_REPO_HOST}" \
             "cd /var/www/rpm/fedora/${{ matrix.fedora_version }}/x86_64 && createrepo_c --update ."
+
+      - name: Generate packages.json
+        run: |
+          scp script/generate-packages-json.py "gitea_ci@${RPM_REPO_HOST}:/tmp/"
+          ssh "gitea_ci@${RPM_REPO_HOST}" \
+            "python3 /tmp/generate-packages-json.py \
+              --repodata-dir /var/www/rpm/fedora/${{ matrix.fedora_version }}/x86_64/repodata \
+              --output /var/www/rpm/fedora/${{ matrix.fedora_version }}/x86_64/packages.json \
+              --base-url https://rpm.lair.cafe/fedora/${{ matrix.fedora_version }}/x86_64"

.gitea/workflows/deploy-ui.yml

@@ -0,0 +1,70 @@
+name: deploy-ui
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "ui/**"
+      - "asset/nginx/**"
+  workflow_dispatch: {}
+
+jobs:
+  build-and-deploy:
+    runs-on:
+      - fedora-43
+      - nvm
+    env:
+      RPM_REPO_HOST: oolon.kosherinata.internal
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        run: |
+          source ~/.nvm/nvm.sh
+          nvm install --lts
+          echo "$(dirname "$(nvm which current)")" >> "$GITHUB_PATH"
+
+      - name: Install dependencies
+        run: |
+          cd ui
+          npm ci
+
+      - name: Build UI
+        run: |
+          cd ui
+          npm run build
+
+      - name: Set up SSH
+        run: |
+          install --directory --mode 700 ~/.ssh
+          echo "${RSYNC_SSH_KEY}" | install --mode 600 /dev/stdin ~/.ssh/id_ed25519
+        env:
+          RSYNC_SSH_KEY: ${{ secrets.RSYNC_SSH_KEY }}
+
+      - name: Test SSH connectivity
+        run: |
+          ssh -o StrictHostKeyChecking=accept-new "gitea_ci@${RPM_REPO_HOST}" exit
+
+      - name: Deploy UI to web root
+        run: |
+          rsync \
+            --archive \
+            --verbose \
+            --delete \
+            --chmod D755,F644 \
+            --include="index.html" \
+            --include="assets/***" \
+            --exclude="*" \
+            ui/dist/ \
+            "gitea_ci@${RPM_REPO_HOST}:/var/www/rpm/"
+
+      - name: Deploy nginx config
+        run: |
+          rsync \
+            --archive \
+            --verbose \
+            --rsync-path="sudo rsync" \
+            --chown=root:root \
+            asset/nginx/rpm.lair.cafe.conf \
+            "gitea_ci@${RPM_REPO_HOST}:/etc/nginx/sites-available/rpm.lair.cafe.conf"
+          ssh "gitea_ci@${RPM_REPO_HOST}" "sudo nginx -t && sudo systemctl reload nginx"