feat: syncLog add Copy button, stack trace, isPermanent (#266) (#269)

lib/data/db/database.dart

@@ -193,6 +193,9 @@ class SyncLogs extends Table {
   DateTimeColumn get finishedAt => dateTime()();
   // Added in schema v13: raw protocol log when account.verbose == true.
   TextColumn get protocolLog => text().nullable()();
+  // Added in schema v33: stack trace and permanent flag for error entries.
+  TextColumn get errorStackTrace => text().nullable()();
+  BoolColumn get isPermanent => boolean().withDefault(const Constant(false))();
 }
 
 /// Per-mailbox breakdown for a single sync cycle.
@@ -571,6 +574,10 @@ class AppDatabase extends _$AppDatabase {
           if (from < 32) {
             await m.createTable(localSieveApplied);
           }
+          if (from >= 7 && from < 33) {
+            await m.addColumn(syncLogs, syncLogs.errorStackTrace);
+            await m.addColumn(syncLogs, syncLogs.isPermanent);
+          }
         },
       );
 }

lib/data/repositories/sync_log_repository_impl.dart

@@ -13,6 +13,8 @@ class SyncLogRepositoryImpl implements SyncLogRepository {
     required String accountId,
     required bool success,
     String? errorMessage,
+    String? stackTrace,
+    bool isPermanent = false,
     required String protocol,
     required int emailsFetched,
     required int emailsSkipped,
@@ -30,6 +32,8 @@ class SyncLogRepositoryImpl implements SyncLogRepository {
               accountId: accountId,
               result: success ? 'ok' : 'error',
               errorMessage: Value(errorMessage),
+              errorStackTrace: Value(stackTrace),
+              isPermanent: Value(isPermanent),
               protocol: Value(protocol),
               itemsSynced: Value(emailsFetched),
               emailsSkipped: Value(emailsSkipped),
@@ -75,6 +79,8 @@ class SyncLogRepositoryImpl implements SyncLogRepository {
             id: r.id,
             result: r.result,
             errorMessage: r.errorMessage,
+            stackTrace: r.errorStackTrace,
+            isPermanent: r.isPermanent,
             protocol: r.protocol,
             emailsFetched: r.itemsSynced,
             emailsSkipped: r.emailsSkipped,