Bump npm deps & migrate to vitest

AGENTS.md

@@ -57,7 +57,7 @@ pipenv run python manage.py migrate           # aplikuje migrace na DB
 
 ```bash
 # Testy a kvalita kódu (z rootu repozitáře — doporučeno pro CI paritu)
-npm run frontend:test           # typy + lint + jest (kompletní frontend CI suite)
+npm run frontend:test           # typy + lint + vitest (kompletní frontend CI suite)
 npm run frontend:lint:js        # pouze ESLint
 npm run frontend:audit          # security audit závislostí (audit-ci)
 
@@ -67,8 +67,8 @@ npm run types                   # TypeScript typová kontrola (tsc)
 npm run types:watch             # tsc ve watch módu
 npm run lint                    # ESLint + Prettier check
 npm run lint!                   # ESLint + Prettier autofix
-npm run jest                    # pouze Jest testy
-npm run jest:watch              # Jest ve watch módu
+npm run vitest                  # pouze Vitest testy
+npm run vitest:watch            # Vitest ve watch módu
 npm run build                   # produkční build (Webpack)
 npm run build:analyze           # bundle analyzer
 ```
@@ -124,9 +124,9 @@ React 19 SPA v [frontend/src/](frontend/src/). Webpack dev server na portu 3000
 
 **Frontend konvence:**
 - Formátování: Prettier (`tabWidth: 4`, `printWidth: 100`)
-- Linting: ESLint 9 s pluginy (react, typescript, jest, testing-library, vanilla-extract, tanstack-query)
+- Linting: ESLint 9 s pluginy (react, typescript, jest-dom, testing-library, vanilla-extract, tanstack-query)
 - CSS: soubory pojmenovány `*.css.ts`, **vždy** vanilla-extract — nikdy inline styly ani plain CSS
-- Testy: Jest + React Testing Library, soubory colocated se zdrojovým kódem (`*.test.ts` / `*.test.tsx`), API mockované přes MSW
+- Testy: Vitest + React Testing Library, soubory colocated se zdrojovým kódem (`*.test.ts` / `*.test.tsx`), API mockované přes MSW
 
 **Pre-commit hooky (Husky + lint-staged):** automaticky spouštějí ESLint a Prettier na staged JS/TS souborech.
 
@@ -146,7 +146,7 @@ React 19 SPA v [frontend/src/](frontend/src/). Webpack dev server na portu 3000
 **CI** ([`.github/workflows/test.yml`](.github/workflows/test.yml)) se spouští na každý push/PR do `master`:
 1. Nainstaluje Node 20 + Python 3.12 + závislosti
 2. Vytvoří `.npmrc` pro FontAwesome PRO z private GitHub Package Registry (token `GPR_TOKEN`)
-3. Spustí frontend testy (typy + lint + jest)
+3. Spustí frontend testy (typy + lint + vitest)
 4. Spustí mypy
 5. Nastartuje PostgreSQL 14 s českou locale v Dockeru
 6. Buildne Django (migrace + staticfiles) přes `scripts/shell/release_tasks.sh`

README.cs.md

@@ -213,11 +213,11 @@ barevným štítkem v horním menu (kromě produkce).
     - E2E testování je postaveno na **BDD frameworku [behave](https://github.com/behave/behave)** –
       testové scénáře jsou psány přirozeným jazykem (Gherkin), podle nich se spouští konkrétní
       testy.
-    - Unit testy jsou postaveny na **frameworku [Jest](https://jestjs.io/)** a nástrojích
+    - Unit testy jsou postaveny na **frameworku [Vitest](https://vitest.dev/)** a nástrojích
       **[React Testing Library](https://testing-library.com/docs/react-testing-library/intro)**
       (jednoduché utility pro testování Reactu),
-      [jest-dom](https://testing-library.com/docs/ecosystem-jest-dom) (custom DOM element matchers
-      pro Jest) a [MSW](https://mswjs.io/) (mockování API).
+      [jest-dom](https://testing-library.com/docs/ecosystem-jest-dom) (custom DOM element matchers)
+      a [MSW](https://mswjs.io/) (mockování API).
     - Pro **testování UI (E2E)** se používá [Selenium](https://github.com/SeleniumHQ/selenium).
     - **Podrobné informace o testech jsou v [`tests/README.md`](tests)**.
 

README.md

@@ -219,11 +219,11 @@ title and color (except for the production).
     - E2E testing is built on a **BDD framework [behave](https://github.com/behave/behave)** –
       testing scenarios are written using a natural language (Gherkin), each of the tests is run
       according to them.
-    - Unit tests are built on a **[Jest](https://jestjs.io/) framework** and tools like
+    - Unit tests are built on a **[Vitest](https://vitest.dev/) framework** and tools like
       **[React Testing Library](https://testing-library.com/docs/react-testing-library/intro)**
       (simple React testing utilities),
-      [jest-dom](https://testing-library.com/docs/ecosystem-jest-dom) (custom DOM element matchers
-      for Jest) and [MSW](https://mswjs.io/) (API mocking).
+      [jest-dom](https://testing-library.com/docs/ecosystem-jest-dom) (custom DOM element matchers)
+      and [MSW](https://mswjs.io/) (API mocking).
     - **UI (E2E) testing** is taken care of by [Selenium](https://github.com/SeleniumHQ/selenium).
     - **Details about the tests are available in [`tests/README.md` (CZ)](tests)**.
 

frontend/babel.config.js

@@ -4,18 +4,6 @@ module.exports = {
             plugins: ["react-refresh/babel"],
         },
         production: {
-            // vycleneni useESModules pouze na produkci kvuli nefunkcnimu Jestu
-            plugins: [
-                [
-                    "@babel/plugin-transform-runtime",
-                    {
-                        useESModules: true,
-                    },
-                ],
-            ],
-        },
-        test: {
-            // Jest deps
             plugins: [["@babel/plugin-transform-runtime"]],
         },
     },

frontend/eslint.config.mjs

@@ -25,8 +25,8 @@ export default [
             "__mocks__/**",
             "babel.config.js",
             "eslint.config.mjs",
-            "jest.config.js",
-            "jest.setup.ts",
+            "vitest.config.ts",
+            "vitest.setup.ts",
             "webpack.config.js",
         ],
     },
@@ -51,15 +51,15 @@ export default [
                     jsx: true,
                 },
                 projectService: {
-                    allowDefaultProject: ["*.config.js", "*.config.ts", "jest.setup.ts"],
+                    allowDefaultProject: ["*.config.js", "*.config.ts", "vitest.setup.ts"],
                 },
                 tsconfigRootDir: import.meta.dirname,
             },
             globals: {
                 ...globals.browser,
                 ...globals.node,
                 ...globals.es2021,
-                ...globals.jest,
+                ...globals.vitest,
                 Atomics: "readonly",
                 SharedArrayBuffer: "readonly",
             },
@@ -98,6 +98,7 @@ export default [
             ...testingLibrary.configs.react.rules,
 
             "react/prop-types": 0,
+            "react/react-in-jsx-scope": "off",
 
             curly: "error",
             "no-console": ["error", { allow: ["warn", "error"] }],