fix(webui): disable update checks and deploy local dashboard assets

.gitea/workflows/release-offline.yml

@@ -51,6 +51,17 @@ jobs:
           app_tag="$(git -C "$worktree" rev-parse --short=12 HEAD)"
           printf 'APP_TAG=%s\n' "$app_tag" >> "$GITHUB_ENV"
 
+      - name: Build dashboard assets
+        shell: bash
+        run: |
+          set -euo pipefail
+
+          cd "$MAIBOT_WORKTREE/dashboard"
+          npm ci
+          npm run build
+
+          test -f dist/index.html
+
       - name: Stage release directory
         shell: bash
         run: |
@@ -69,6 +80,8 @@ jobs:
           rm -rf "$release_dir"
           mkdir -p "$release_dir"
           git -C "$MAIBOT_WORKTREE" archive HEAD | tar -x -C "$release_dir"
+          mkdir -p "$release_dir/dashboard"
+          cp -a "$MAIBOT_WORKTREE/dashboard/dist" "$release_dir/dashboard/dist"
 
           printf 'RELEASE_DIR=%s\n' "$release_dir" >> "$GITHUB_ENV"