fix: resolve circular dependency between utils and service libraries

Moved useAuthStore from utils to service to break circular dependency:
- utils was importing from service (supabase client, types)
- service was importing from utils (useAuthStore)
- Solution: moved useAuthStore and related storage utilities to service

Changes:
- Created libs/service/src/storage/ with cookies.ts and local-storage.ts
- Moved use-auth-store.ts from utils/hooks to service/hooks/auth
- Updated all 20+ files to import useAuthStore from service instead of utils
- Removed useAuthStore export from utils
- Added storage exports to service index

This fixes the build error: "Could not execute command because the task graph has a circular dependency"

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

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

apps/hackathon/src/app/auth/login/page.tsx

@@ -1,8 +1,7 @@
 import { useState } from 'react';
-import { useGitHubAuth, useEmailAuth, supabase } from '@imphnen-frontend-service/service';
+import { useGitHubAuth, useEmailAuth, supabase, useAuthStore } from '@imphnen-frontend-service/service';
 import { GithubOutlined } from '@ant-design/icons';
-import { useNavigate } from 'react-router';
-import { useAuthStore } from '@imphnen-frontend-service/utils';
+import { useNavigate, Link } from 'react-router';
 import { toast } from 'sonner';
 
 export default function LoginPage() {
@@ -143,9 +142,14 @@ export default function LoginPage() {
           </div>
 
           <div>
-            <label htmlFor="password" className="block text-sm font-medium text-gray-700 mb-1">
-              Password
-            </label>
+            <div className="flex items-center justify-between mb-1">
+              <label htmlFor="password" className="block text-sm font-medium text-gray-700">
+                Password
+              </label>
+              <Link to="/auth/forgot-password" className="text-sm text-primary-600 hover:text-primary-700">
+                Forgot password?
+              </Link>
+            </div>
             <input
               id="password"
               type="password"