🎨 chore: integrate ESLint header automation with AGPL-3.0 notice

• Added `.eslintrc.cjs`
  - Enables `header` + `react-hooks` plugins
  - Inserts standardized AGPL-3.0 license banner for © 2025 QuantumNous
  - JS/JSX parsing & JSX support configured

• Installed dev-deps: `eslint`, `eslint-plugin-header`, `eslint-plugin-react-hooks`

• Updated `web/package.json` scripts
  - `eslint` → lint with cache
  - `eslint:fix` → auto-insert/repair license headers

• Executed `eslint --fix` to prepend license banner to all JS/JSX files

• Ignored runtime cache
  - Added `.eslintcache` to `.gitignore` & `.dockerignore`

Result: consistent AGPL-3.0 license headers, reproducible linting across local dev & CI.

web/package.json

@@ -46,6 +46,8 @@
     "build": "vite build",
     "lint": "prettier . --check",
     "lint:fix": "prettier . --write",
+    "eslint": "bunx eslint \"**/*.{js,jsx}\" --cache",
+    "eslint:fix": "bunx eslint \"**/*.{js,jsx}\" --fix --cache",
     "preview": "vite preview"
   },
   "eslintConfig": {
@@ -71,6 +73,9 @@
     "@so1ve/prettier-config": "^3.1.0",
     "@vitejs/plugin-react": "^4.2.1",
     "autoprefixer": "^10.4.21",
+    "eslint": "8.57.0",
+    "eslint-plugin-header": "^3.1.1",
+    "eslint-plugin-react-hooks": "^5.2.0",
     "postcss": "^8.5.3",
     "prettier": "^3.0.0",
     "tailwindcss": "^3",