feat(trial-user-limits): implement trial member limit checks in project and team controllers

- Added TRIAL_MEMBER_LIMIT constant to enforce a maximum number of trial users in project and team member controllers.
- Implemented logic to check current trial members against the limit during user addition, providing appropriate responses for exceeding limits.
- Updated relevant controllers to utilize the new trial member limit functionality, enhancing subscription management for trial users.
- Enhanced error messaging to guide users on upgrading their subscription for additional members.

worklenz-frontend/package.json

@@ -9,7 +9,11 @@
     "build": "vite build",
     "dev-build": "vite build",
     "serve": "vite preview",
-    "format": "prettier --write ."
+    "format": "prettier --write .",
+    "test": "vitest",
+    "test:run": "vitest run",
+    "test:coverage": "vitest run --coverage",
+    "test:ui": "vitest --ui"
   },
   "dependencies": {
     "@ant-design/colors": "^7.1.0",
@@ -77,7 +81,10 @@
     "@types/react-dom": "19.0.0",
     "@types/react-window": "^1.8.8",
     "@vitejs/plugin-react": "^4.3.4",
+    "@vitest/coverage-v8": "^3.2.4",
+    "@vitest/ui": "^3.2.4",
     "autoprefixer": "^10.4.21",
+    "jsdom": "^26.1.0",
     "postcss": "^8.5.2",
     "prettier-plugin-tailwindcss": "^0.6.13",
     "rollup": "^4.40.2",