fix: resolve ESLint errors for CI

- Remove unused imports (Flag, Tag, Hash, User, FolderPlus, Check, Plus, Link, cn, formatDate, getPriorityLabel)
- Remove unused variable (inbox in Sidebar)
- Fix empty catch block with comment
- Replace any types with proper Mock/Record types in tests
- Suppress set-state-in-effect for intentional form state sync
- Remove unused get parameter from zustand store

src/pages/Login.tsx

@@ -1,5 +1,5 @@
 import { useState } from 'react';
-import { useNavigate, Link } from 'react-router-dom';
+import { useNavigate } from 'react-router-dom';
 import { useAuthStore } from '@/stores/auth';
 
 export function LoginPage() {