ci: add eslint and coverage deps; use local OpenNext CLI; update preview smoke to npm run preview

.gitea/workflows/ci.yaml

@@ -49,8 +49,8 @@ jobs:
         shell: bash
         run: |
           set -euo pipefail
-          # Start preview in background and verify it doesn't crash immediately
-          npx @opennextjs/cloudflare@latest preview > preview.log 2>&1 &
+          # Start preview via local CLI in background and verify it doesn't crash immediately
+          npm run preview > preview.log 2>&1 &
           PREVIEW_PID=$!
           # Give it a moment to start
           sleep 5
@@ -92,4 +92,3 @@ jobs:
           else
             echo "No sql/schema.sql found; skipping D1 dry-run."
           fi
-

package.json

@@ -12,8 +12,8 @@
     "test:ui": "vitest --ui",
     "test:run": "vitest run",
     "test:coverage": "vitest run --coverage",
-    "pages:build": "npx @opennextjs/cloudflare@latest build",
-    "preview": "npx @opennextjs/cloudflare@latest preview",
+    "pages:build": "opennextjs-cloudflare build",
+    "preview": "opennextjs-cloudflare preview",
     "deploy": "wrangler pages deploy .vercel/output/static",
     "db:create": "wrangler d1 create united-tattoo",
     "db:migrate": "wrangler d1 execute united-tattoo --file=./sql/schema.sql",
@@ -105,6 +105,9 @@
     "zod": "3.25.67"
   },
   "devDependencies": {
+    "@vitest/coverage-v8": "^3.2.4",
+    "eslint": "^8.57.0",
+    "eslint-config-next": "14.2.16",
     "@tailwindcss/postcss": "^4.1.9",
     "@testing-library/jest-dom": "^6.8.0",
     "@testing-library/react": "^16.3.0",