refactor: Simplify ChangePresentationInfosRequest by removing phone number and email fields; update related API endpoints for email and phone number management

frontend/src/views/profile/creators/ChangeEmailDialog.vue

@@ -50,13 +50,10 @@ async function saveEmail() {
   try {
     isLoading.value = true;
 
-    // Save presentation info
+    // Save email
     await client.post(
-      `/api/creators/${props.creator.id}/presentation-infos`,
+      `/api/creators/${props.creator.id}/email`,
       {
-        description: props.creator.presentation?.description || "",
-        videoUrl: props.creator.presentation?.videoUrl || "",
-        phoneNumber: props.creator.presentation?.phoneNumber || "",
         email: email.value || ""
       }
     );

frontend/src/views/profile/creators/ChangePhoneDialog.vue

@@ -50,14 +50,11 @@ async function savePhoneNumber() {
   try {
     isLoading.value = true;
 
-    // Save presentation info
+    // Save phone number
     await client.post(
-      `/api/creators/${props.creator.id}/presentation-infos`,
+      `/api/creators/${props.creator.id}/phone`,
       {
-        description: props.creator.presentation?.description || "",
-        videoUrl: props.creator.presentation?.videoUrl || "",
-        phoneNumber: phoneNumber.value || "",
-        email: props.creator.presentation?.email || ""
+        phoneNumber: phoneNumber.value || ""
       }
     );