fix(hackathon): remove Supabase dependencies completely

- Remove Supabase export from service library
- Update forgot-password and reset-password pages to use backend API
- Update layout.tsx to use useAuthStore instead of Supabase session
- Update sidebar logout to not use Supabase
- Update middleware to use SessionUser instead of Supabase
- Update use-session hook to remove Supabase dependency

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

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

libs/service/src/index.ts

@@ -2,5 +2,5 @@ export * from './api';
 export * from './hooks';
 export * from './types';
 export * from './schemas';
-export * from './supabase';
 export * from './storage';
+// Note: Supabase export removed - using backend API instead

libs/utils/src/hooks/use-session.ts

@@ -1,4 +1,4 @@
-import { supabase, useAuthStore } from '@imphnen-frontend-service/service';
+import { useAuthStore } from '@imphnen-frontend-service/service';
 import { useNavigate } from 'react-router';
 
 export const useSession = () => {
@@ -6,9 +6,9 @@ export const useSession = () => {
   const { clearSession, session, status } = useAuthStore();
   const isAuthenticated = status === 'authenticated';
 
-  const signOut = async () => {
-    await supabase.auth.signOut();
+  const signOut = () => {
     clearSession();
+    localStorage.clear();
     navigate('/auth/login');
   };