Add batch BMPA retry syncable link on batch show page

app/Http/Controllers/Admin/PlatformBatchController.php

@@ -134,6 +134,14 @@ class PlatformBatchController extends Controller
                 'bmpa_failed_only' => '1',
             ]), $safeBackForLinks, 'filters');
 
+            // 本批次可同步重试：用于处理“批量 BMPA 后仍未同步订阅”的订单（例如同步暂时失败/后续补救）。
+            // 口径：batch_bmpa_run_id + syncable_only=1 + sync_status=unsynced
+            $governanceLinks['retry_syncable'] = BackUrl::withBackAndFragment('/admin/platform-orders?' . \Illuminate\Support\Arr::query([
+                'batch_bmpa_run_id' => $runId,
+                'syncable_only' => '1',
+                'sync_status' => 'unsynced',
+            ]), $safeBackForLinks, 'filters');
+
             // 本批次可再次尝试：对齐仪表盘/列表的“真正可BMPA处理集合”口径。
             $governanceLinks['retry_processable'] = BackUrl::withBackAndFragment('/admin/platform-orders?' . \Illuminate\Support\Arr::query([
                 'batch_bmpa_run_id' => $runId,