Refactor profile screen and organize project structure

- Extract ProfileScreen and components to features/profile
- Move shared hooks and stores to top-level
- Add RLS policies for admin permissions
- Add RELEASING.md guide
- Update .gitignore

apps/admin/src/App.tsx

@@ -134,7 +134,7 @@ function App() {
                         <Route
                             path="/feedback"
                             element={
-                                <ProtectedRoute requiredPermission={PERMISSION_KEYS.VIEW_USERS}>
+                                <ProtectedRoute requiredPermission={PERMISSION_KEYS.MANAGE_FEEDBACK}>
                                     <FeedbackPage />
                                 </ProtectedRoute>
                             }