Move the action from Deno to Node.js and Vite+

.gitea/workflows/check.yml

@@ -5,17 +5,18 @@ on:
     branches: [main]
 
 jobs:
-  deno:
+  check:
     runs-on: self-hosted
     steps:
       - uses: actions/checkout@v4
 
-      - run: apt-get update && apt-get install -y unzip
+      # The action runs on this same image; src/post.ts needs Node 24.2+.
+      - run: node --version
 
-      - uses: denoland/setup-deno@v2
+      - run: npm ci
 
-      - run: >-
-          deno fmt --check . &&
-          deno lint . &&
-          deno check src/prepare.ts src/run.ts src/post.ts &&
-          deno test --allow-all
+      # Formatting, lint, and type checks, then every test. The job runs as
+      # root, so the isolation tests run rather than skip.
+      - run: npx vp check
+
+      - run: npx vp test