feat: redesign superadmin agencies list, implement flat design, add date filters, and fix UI bugs

backend/internal/repository/user_repository.go

@@ -2,6 +2,7 @@ package repository
 
 import (
 	"database/sql"
+	"log"
 	"time"
 
 	"aggios-app/backend/internal/domain"
@@ -53,6 +54,8 @@ func (r *UserRepository) Create(user *domain.User) error {
 
 // FindByEmail finds a user by email
 func (r *UserRepository) FindByEmail(email string) (*domain.User, error) {
+	log.Printf("🔍 FindByEmail called with: %s", email)
+	
 	query := `
 		SELECT id, tenant_id, email, password_hash, first_name, role, created_at, updated_at
 		FROM users
@@ -72,10 +75,16 @@ func (r *UserRepository) FindByEmail(email string) (*domain.User, error) {
 	)
 
 	if err == sql.ErrNoRows {
+		log.Printf("❌ User not found: %s", email)
 		return nil, nil
 	}
+	if err != nil {
+		log.Printf("❌ DB error finding user %s: %v", email, err)
+		return nil, err
+	}
 
-	return user, err
+	log.Printf("✅ Found user: %s, role: %s", user.Email, user.Role)
+	return user, nil
 }
 
 // FindByID finds a user by ID