ci: add quality-gate workflow, ESLint and Playwright smoke test

package.json

@@ -23,7 +23,9 @@
     "decor:script-word": "node scripts/decor/script-word.mjs",
     "decor:icons": "node scripts/decor/icons.mjs",
     "thumbnails": "node scripts/thumbnails.mjs",
-    "templates:compare": "node scripts/templates/compare.mjs"
+    "templates:compare": "node scripts/templates/compare.mjs",
+    "lint": "eslint .",
+    "e2e": "playwright test"
   },
   "dependencies": {
     "@carbon/icons-react": "^11.89.0",
@@ -40,15 +42,21 @@
     "react-is": "^19.3.0"
   },
   "devDependencies": {
+    "@eslint/js": "10.0.1",
+    "@playwright/test": "1.63.0",
     "@tauri-apps/cli": "^2.12.1",
     "@types/node": "^26.6.4",
     "@types/react": "^19.2.0",
     "@types/react-dom": "^19.2.0",
     "@vitejs/plugin-react": "^5.2.0",
     "clipper-lib": "^6.4.2",
+    "eslint": "10.12.0",
+    "eslint-plugin-react-hooks": "7.1.1",
+    "globals": "17.13.0",
     "pdfjs-dist": "6.4.299",
     "sass": "^1.105.1",
     "typescript": "^5.9.3",
+    "typescript-eslint": "8.71.0",
     "vite": "^7.3.6",
     "vitest": "^5.0.3"
   },