feat: Add comprehensive test suite and misc improvements

- Add frontend unit tests with Vitest for components, hooks, pages, and utilities
- Add backend tests for webhooks, notifications, middleware, and edge cases
- Add ForgotPassword, NotFound, and ResetPassword pages
- Add migration for orphaned staff resources conversion
- Add coverage directory to gitignore (generated reports)
- Various bug fixes and improvements from previous work

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/hooks/useBusiness.ts

@@ -60,6 +60,7 @@ export const useCurrentBusiness = () => {
           white_label: false,
           custom_oauth: false,
           plugins: false,
+          can_create_plugins: false,
           tasks: false,
           export_data: false,
           video_conferencing: false,