Add CMS Management Functionality

- Introduced a new CMS management feature, including the ability to create, retrieve, update, search, and delete CMS entries.
- Implemented the CMS entity, repository, service, and handler layers following Clean Architecture principles.
- Added API endpoints for CMS operations in Swagger documentation, ensuring comprehensive API specifications.
- Enhanced error handling and validation for CMS data, improving robustness and user experience.
- Updated the main application to initialize the CMS repository and service, integrating them into the existing system.

internal/contact/handler.go

@@ -21,7 +21,7 @@ func NewHandler(service Service) *Handler {
 // Create handles creating a new contact message
 // @Summary Create a new contact message
 // @Description Create a new contact message from a user
-// @Tags contacts
+// @Tags Contacts
 // @Accept json
 // @Produce json
 // @Param contact body CreateContactForm true "Contact information"
@@ -52,7 +52,7 @@ func (h *Handler) Create(c echo.Context) error {
 // GetByID handles retrieving a contact by ID (admin only)
 // @Summary Get contact by ID
 // @Description Retrieve a contact message by its ID (admin only)
-// @Tags contacts
+// @Tags Admin-Contacts
 // @Accept json
 // @Produce json
 // @Param id path string true "Contact ID"
@@ -78,7 +78,7 @@ func (h *Handler) GetByID(c echo.Context) error {
 // Search handles searching contacts with filters (admin only)
 // @Summary Search contacts
 // @Description Search contacts with filters and pagination (admin only)
-// @Tags contacts
+// @Tags Admin-Contacts
 // @Accept json
 // @Produce json
 // @Param q query string false "Search query"
@@ -112,7 +112,7 @@ func (h *Handler) Search(c echo.Context) error {
 // UpdateStatus handles updating contact status (admin only)
 // @Summary Update contact status
 // @Description Update the status of a contact message (admin only)
-// @Tags contacts
+// @Tags Admin-Contacts
 // @Accept json
 // @Produce json
 // @Param id path string true "Contact ID"
@@ -152,7 +152,7 @@ func (h *Handler) UpdateStatus(c echo.Context) error {
 // GetStats handles retrieving contact statistics (admin only)
 // @Summary Get contact statistics
 // @Description Get contact statistics by status (admin only)
-// @Tags contacts
+// @Tags Admin-Contacts
 // @Accept json
 // @Produce json
 // @Success 200 {object} response.APIResponse{data=ContactStats}
@@ -170,7 +170,7 @@ func (h *Handler) GetStats(c echo.Context) error {
 // Delete handles deleting a contact (admin only)
 // @Summary Delete contact
 // @Description Delete a contact message by ID (admin only)
-// @Tags contacts
+// @Tags Admin-Contacts
 // @Accept json
 // @Produce json
 // @Param id path string true "Contact ID"