build(frontend): migrate CRA to Next.js (CSR lift-and-shift)

Wave 6. Swaps react-scripts' build/dev tooling for Next.js while keeping the app's actual routing/rendering model unchanged -- the app is almost entirely behind auth with no proven SSR/SEO need, so a real App Router rewrite would touch ~90 files for zero user-visible benefit. - next.config.js: output:'export' (static HTML+JS, same "single index.html served by nginx with try_files fallback" deploy as CRA). - app/layout.tsx + app/page.tsx: root shell ports public/index.html's <head>, mounts the whole existing App tree client-only (ssr:false) since it reads window/localStorage during initial render and Next's static prerender would otherwise execute that on the server. - Renamed src/pages/ -> src/views/ (Next's Pages Router auto-detects any `pages/` dir under the app root and tried to build our React Router page components as its own routes). - REACT_APP_* -> NEXT_PUBLIC_* across code, .env.development, Dockerfile, docker-compose.yml build args. - Replaced the CRA SVGR import (`ReactComponent` from .svg, unsupported under Turbopack) with a small inline JobbjaktMark component. - TypeScript 4.9 -> 5.9 (MUI v8's type-checked build needs syntax 4.9's parser rejects; CRA never hit this because babel doesn't type-check). - Dropped CRA-only files (index.tsx, reportWebVitals, react-app-env.d.ts, public/index.html); kept react-scripts as the Jest test runner only (next/jest migration not needed -- the existing config already works). Verified: `next build` static export succeeds, `next dev` serves the landing page and client-side routes (login etc.) correctly, all 57 frontend tests + 172 backend tests still green. Known caveat: deep-linking straight to a sub-route (e.g. /login) 404s in `next dev` since there's no server route for it -- the app only ever mounts at "/". Production is unaffected: nginx's existing try_files fallback still serves index.html for any path.
2026-07-12 00:50:45 +02:00
parent fc62a659ef
commit acf60c2a07
39 changed files with 948 additions and 127 deletions
@@ -21,18 +21,19 @@
    "@types/react-dom": "^19.2.3",
    "axios": "^1.15.0",
    "date-fns": "^4.1.0",
+    "next": "^16.2.10",
    "react": "^19.2.4",
    "react-dom": "^19.2.4",
    "react-router-dom": "^6.30.3",
    "react-scripts": "5.0.1",
-    "typescript": "^4.9.5",
+    "typescript": "^5.9.3",
    "web-vitals": "^2.1.4"
  },
  "scripts": {
-    "start": "react-scripts start",
-    "build": "node --max-old-space-size=4096 ./node_modules/react-scripts/bin/react-scripts.js build",
-    "test": "react-scripts test",
-    "eject": "react-scripts eject"
+    "dev": "next dev",
+    "start": "next dev",
+    "build": "node --max-old-space-size=4096 ./node_modules/next/dist/bin/next build",
+    "test": "react-scripts test"
  },
  "eslintConfig": {
    "extends": [