feat(api): delete marker endpoint

src/main/java/com/ddf/vodsystem/controllers/MarkerController.java

@@ -51,6 +51,15 @@ public class MarkerController {
         );
     }
 
+    @DeleteMapping("/{id}")
+    public ResponseEntity<APIResponse<String>> deleteMarker(@PathVariable Long id) {
+        markerService.deleteMarker(id);
+
+        return ResponseEntity.ok(
+                new APIResponse<>(SUCCESS, "Marker deleted successfully", "Marker " + id + " deleted.")
+        );
+    }
+
     private MarkerResponse convertToDTO(Marker marker) {
         return new MarkerResponse(
                 marker.getId(),

src/main/java/com/ddf/vodsystem/services/MarkerService.java

@@ -72,6 +72,11 @@ public class MarkerService {
         return markerRepository.saveAndFlush(marker);
     }
 
+    public void deleteMarker(Long id) {
+        Marker marker = getMarkerById(id);
+        markerRepository.delete(marker);
+    }
+
     @Scheduled(fixedDelay = 360_000)
     @Transactional
     public void deleteOldMarkers() {