Refactor user domain to utilize string IDs and integrate MongoDB ORM

- Updated User entity to embed MongoDB model and replace uuid.UUID with string for ID fields.
- Modified repository methods to accept string IDs instead of uuid.UUID, enhancing compatibility with MongoDB.
- Refactored service and handler methods to align with the new ID type, ensuring consistent usage across the user management functionality.
- Improved response handling in UserListResponse to directly use string IDs.
- Streamlined index creation in the user repository using the MongoDB ORM for better maintainability.

internal/user/middleware.go

@@ -53,7 +53,7 @@ func (h *Handler) AuthMiddleware() echo.MiddlewareFunc {
 			}
 
 			// Store user information in context for handlers to use
-			c.Set("user_id", userID)
+			c.Set("user_id", userID.String())
 			c.Set("user_email", validationResult.Claims.Email)
 			c.Set("user_role", validationResult.Claims.Role)
 			c.Set("company_id", validationResult.Claims.CompanyID)
@@ -147,10 +147,10 @@ func (h *Handler) CompanyAccessMiddleware() echo.MiddlewareFunc {
 }
 
 // GetUserIDFromContext extracts user ID from Echo context
-func GetUserIDFromContext(c echo.Context) (uuid.UUID, error) {
-	userID, ok := c.Get("user_id").(uuid.UUID)
+func GetUserIDFromContext(c echo.Context) (string, error) {
+	userID, ok := c.Get("user_id").(string)
 	if !ok {
-		return uuid.Nil, echo.NewHTTPError(http.StatusUnauthorized, "User ID not found in context")
+		return "", echo.NewHTTPError(http.StatusUnauthorized, "User ID not found in context")
 	}
 	return userID, nil
 }