Enhance cursor rules and add user management functionality

- Updated cursor rules to emphasize the importance of dependency injection and logging practices.
- Introduced a new user management domain, including entities, services, handlers, and validation.
- Implemented user authentication features such as login, registration, and role-based access control.
- Added Redis integration for token management and caching.
- Enhanced API documentation with Swagger for user-related endpoints.
- Updated configuration to support new JWT settings and Redis connection parameters.

internal/user/entity.go

@@ -0,0 +1,46 @@
+package user
+
+import (
+	"github.com/google/uuid"
+)
+
+// UserRole represents user roles in the system
+type UserRole string
+
+const (
+	UserRoleAdmin    UserRole = "admin"
+	UserRoleManager  UserRole = "manager"
+	UserRoleOperator UserRole = "operator"
+	UserRoleViewer   UserRole = "viewer"
+)
+
+// UserStatus represents user account status
+type UserStatus string
+
+const (
+	UserStatusActive    UserStatus = "active"
+	UserStatusInactive  UserStatus = "inactive"
+	UserStatusSuspended UserStatus = "suspended"
+)
+
+// User represents a system user (admin/manager/operator)
+type User struct {
+	ID           uuid.UUID  `bson:"_id"`
+	FullName     string     `bson:"full_name"`
+	Username     string     `bson:"username"`
+	Email        string     `bson:"email"`
+	Password     string     `bson:"password"` // Never serialize password
+	Role         UserRole   `bson:"role"`
+	Status       UserStatus `bson:"status"`
+	CompanyID    *uuid.UUID `bson:"company_id,omitempty"`
+	Department   *string    `bson:"department,omitempty"`
+	Position     *string    `bson:"position,omitempty"`
+	Phone        *string    `bson:"phone,omitempty"`
+	ProfileImage *string    `bson:"profile_image,omitempty"`
+	IsVerified   bool       `bson:"is_verified"`
+	LastLoginAt  *int64     `bson:"last_login_at,omitempty"` // Unix timestamp
+	CreatedAt    int64      `bson:"created_at"`              // Unix timestamp
+	UpdatedAt    int64      `bson:"updated_at"`              // Unix timestamp
+	CreatedBy    *uuid.UUID `bson:"created_by,omitempty"`
+	UpdatedBy    *uuid.UUID `bson:"updated_by,omitempty"`
+}