Stop round-tripping wallpaper data

ts/sql/migrations/1410-remove-wallpaper.ts

@@ -0,0 +1,41 @@
+// Copyright 2025 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import type { LoggerType } from '../../types/Logging';
+import { type WritableDB } from '../Interface';
+
+export const version = 1410;
+
+export function updateToSchemaVersion1410(
+  currentVersion: number,
+  db: WritableDB,
+  logger: LoggerType
+): void {
+  if (currentVersion >= 1410) {
+    return;
+  }
+
+  db.transaction(() => {
+    db.exec(`
+      UPDATE conversations
+        SET json = json_remove(json, 
+          '$.wallpaperPreset', 
+          '$.wallpaperPhotoPointerBase64', 
+          '$.dimWallpaperInDarkMode',
+          '$.autoBubbleColor'
+        );
+      
+      DELETE FROM items 
+        WHERE id IN (
+          'defaultWallpaperPhotoPointer',
+          'defaultWallpaperPreset',
+          'defaultDimWallpaperInDarkMode',
+          'defaultAutoBubbleColor'
+        );
+    `);
+
+    db.pragma('user_version = 1410');
+  })();
+
+  logger.info('updateToSchemaVersion1410: success!');
+}