chore(client): add lint, format and test tooling

Configure ESLint 10 (flat, Vue + a11y), Prettier, Vitest + @vue/test-utils + jsdom, and add npm scripts for lint/format/test. Document VITE_API_BASE_URL.

client/.env.example

@@ -1,5 +1,8 @@
 # SurrealDB — frontend (Vite)
 
+# Bazowy adres API backendu (BFF). Pusty = ten sam origin (proxy Vite w dev).
+VITE_API_BASE_URL=
+
 # Wspólna przestrzeń nazw / baza
 VITE_SURREAL_NAMESPACE=hubmi
 VITE_SURREAL_DATABASE=hubmi

client/.prettierignore

@@ -0,0 +1,4 @@
+dist
+node_modules
+coverage
+package-lock.json

client/.prettierrc.json

@@ -0,0 +1,7 @@
+{
+  "singleQuote": true,
+  "semi": false,
+  "printWidth": 100,
+  "trailingComma": "all",
+  "arrowParens": "always"
+}

client/eslint.config.js

@@ -0,0 +1,29 @@
+import js from '@eslint/js'
+import prettier from 'eslint-config-prettier'
+import pluginVue from 'eslint-plugin-vue'
+import vueA11y from 'eslint-plugin-vuejs-accessibility'
+import globals from 'globals'
+import tseslint from 'typescript-eslint'
+
+export default tseslint.config(
+  { ignores: ['dist/**', 'node_modules/**', 'coverage/**'] },
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  ...pluginVue.configs['flat/recommended'],
+  ...vueA11y.configs['flat/recommended'],
+  {
+    files: ['**/*.{ts,vue}'],
+    languageOptions: {
+      globals: { ...globals.browser },
+      parserOptions: {
+        parser: tseslint.parser,
+        ecmaVersion: 'latest',
+        sourceType: 'module',
+      },
+    },
+    rules: {
+      'vue/multi-word-component-names': 'off',
+    },
+  },
+  prettier,
+)

client/package.json

@@ -6,23 +6,44 @@
   "scripts": {
     "dev": "vite",
     "build": "vue-tsc -b && vite build",
+    "preview": "vite preview",
     "copy": "node ../scripts/copy-client.mjs",
-    "preview": "vite preview"
+    "lint": "eslint .",
+    "lint:fix": "eslint . --fix",
+    "format": "prettier --write .",
+    "format:check": "prettier --check .",
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "test:a11y": "vitest run --dir src"
   },
   "dependencies": {
     "@mdi/font": "^7.4.47",
     "@surrealdb/wasm": "^2.6.1",
     "@vueuse/core": "^15.0.0",
+    "pinia": "^4.0.3",
     "surrealdb": "^2.0.10",
     "vue": "^3.5.42",
+    "vue-i18n": "^11.4.13",
+    "vue-router": "^5.3.1",
     "vuetify": "^4.2.3"
   },
   "devDependencies": {
+    "@eslint/js": "^10.0.1",
     "@types/node": "^24.13.3",
     "@vitejs/plugin-vue": "^6.0.8",
+    "@vue/test-utils": "^2.5.1",
     "@vue/tsconfig": "^0.9.1",
+    "eslint": "^10.12.0",
+    "eslint-config-prettier": "^10.1.8",
+    "eslint-plugin-vue": "^10.11.1",
+    "eslint-plugin-vuejs-accessibility": "^2.6.0",
+    "globals": "^17.13.0",
+    "jsdom": "^29.1.1",
+    "prettier": "^3.9.9",
     "typescript": "~6.0.2",
+    "typescript-eslint": "^8.71.0",
     "vite": "^8.3.0",
+    "vitest": "^5.0.3",
     "vue-tsc": "^3.3.11"
   }
 }

client/vitest.config.ts

@@ -0,0 +1,11 @@
+import vue from '@vitejs/plugin-vue'
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+  plugins: [vue()],
+  test: {
+    environment: 'jsdom',
+    globals: true,
+    include: ['src/**/*.spec.ts'],
+  },
+})