feat: T5DE's website: landing page, download, changelog and FAQ

Co-Authored-By: Claude Opus 5.5 <[email protected]>

.gitea/workflows/ci.yml

@@ -0,0 +1,61 @@
+# Type-checks and builds the website; then, for main and vX.Y.Z tags, builds its image and pushes it to git.t5de.dev.
+# Komodo deploys it (dhkatz/infra); CI never deploys.
+name: CI
+
+on:
+  push:
+    branches: [main]
+    tags: ["v*"]
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: 1.4.4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 26
+
+      - name: Install
+        run: bun install --frozen-lockfile
+
+      - name: Check types
+        run: bun run check-types
+
+      - name: Build
+        run: bun run build
+
+  # main → :latest-main and :main-<commit>; vX.Y.Z → :X.Y.Z, :X.Y and :latest. Built by the runner's Docker.
+  image:
+    needs: test
+    if: github.event_name == 'push'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Build and push
+        env:
+          REGISTRY_TOKEN: ${{ secrets.REGISTRY_TOKEN }}
+          IMAGE: git.t5de.dev/t5de/t5de-site
+        run: |
+          case "$GITHUB_REF" in
+            refs/heads/main) version="main-${GITHUB_SHA::12}"; tags="latest-main $version" ;;
+            refs/tags/v*)
+              version="${GITHUB_REF#refs/tags/v}"
+              [[ "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]] || { echo "Not a vX.Y.Z tag: no image"; exit 0; }
+              tags="$version ${version%.*} latest" ;;
+            *) echo "Not main or a tag: no image"; exit 0 ;;
+          esac
+          echo "$REGISTRY_TOKEN" | docker login git.t5de.dev -u deploy --password-stdin
+          docker build --label org.opencontainers.image.source="$GITHUB_SERVER_URL/$GITHUB_REPOSITORY" \
+            --label org.opencontainers.image.revision="$GITHUB_SHA" --label org.opencontainers.image.version="$version" \
+            $(for t in $tags; do echo "-t $IMAGE:$t"; done) .
+          for t in $tags; do docker push -q "$IMAGE:$t"; done
+          docker logout git.t5de.dev