Require review before Tahesab wallet sync and harden accounting admin UX.

Single-customer and row sync preview balances with documents before overwrite/keep; bulk sync keeps confirm. Also ship Zarin wallet sync actions, field help, and get_user cache improvements.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/utils/config.ts

@@ -22,6 +22,13 @@ export function hasAppUiConfig(): boolean {
   return Boolean(cfg)
 }
 
+/** true اگر get_user → ui_variant برابر modular باشد (بنرهای تم اپ) */
+export function isModularUiVariant(): boolean {
+  return String(getConfigApp('ui_variant') ?? '')
+    .trim()
+    .toLowerCase() === 'modular'
+}
+
 let storeModeFromSettings: boolean | null = null
 let settingsBootstrapped = false