perf(admin): full-stack performance optimization for all list tables

- Implemented server-side search, infinite scrolling, and list virtualization for Tenants, Users, and Audit Logs.
- Backend: Enhanced Repository, Service, and Handler layers to support 'search' and 'cursor' parameters.
- Frontend: Integrated @tanstack/react-virtual and useInfiniteQuery for high-performance rendering.
- Quality: Updated all unit tests and E2E tests to match the new asynchronous server-side search architecture.
- i18n: Synced all translation keys and cleaned up unused resources.

backend/internal/repository/user_repository_test.go

@@ -88,7 +88,7 @@ func TestUserRepository(t *testing.T) {
 		_ = repo.Create(ctx, &domain.User{Email: "alice@test.com", Name: "Alice", Role: "user"})
 		_ = repo.Create(ctx, &domain.User{Email: "bob@test.com", Name: "Bob", Role: "user"})
 
-		users, total, err := repo.List(ctx, 0, 10, "Alice", "")
+		users, total, _, err := repo.List(ctx, 0, 10, "Alice", []string{}, "")
 		assert.NoError(t, err)
 		assert.True(t, total >= 1)
 		assert.Equal(t, "Alice", users[0].Name)