fix(account): make incremental_sync_interval_sec required

protos/rustmailer.proto

@@ -170,7 +170,7 @@ message AccountCreateRequest {
   // Optional: The interval (in minutes) for a full synchronization pass.
   optional int64 full_sync_interval_min = 8;
   // Optional: The interval (in seconds) for incremental synchronization updates.
-  optional int64 incremental_sync_interval_sec = 9;
+  int64 incremental_sync_interval_sec = 9;
   // Method used to access and manage emails.
   MailerType mailer_type = 10;
 }

src/modules/account/payload.rs

@@ -59,7 +59,7 @@ pub struct AccountCreateRequest {
     pub full_sync_interval_min: Option<i64>,
     /// Incremental sync interval (seconds), default 60s
     #[oai(validator(minimum(value = "10"), maximum(value = "3600")))]
-    pub incremental_sync_interval_sec: Option<i64>,
+    pub incremental_sync_interval_sec: i64,
 }
 
 impl AccountCreateRequest {
@@ -86,13 +86,6 @@ impl AccountCreateRequest {
                     ErrorCode::InvalidParameter
                 ));
             }
-
-            if self.incremental_sync_interval_sec.is_none() {
-                return Err(raise_error!(
-                    "Invalid input: 'incremental_sync_interval_sec' must be provided.".into(),
-                    ErrorCode::InvalidParameter
-                ));
-            }
         }
         Ok(AccountV2::create(self)?)
     }

src/modules/account/v2.rs

@@ -142,7 +142,7 @@ impl AccountV2 {
             sync_folders: vec![],
             known_folders: BTreeSet::new(),
             full_sync_interval_min: request.full_sync_interval_min,
-            incremental_sync_interval_sec: request.incremental_sync_interval_sec.unwrap_or(60),
+            incremental_sync_interval_sec: request.incremental_sync_interval_sec,
             created_at: utc_now!(),
             updated_at: utc_now!(),
         })