hotfix: show installing state on install retry

Retrying from Install (retry) kept the operation in InstallCancelled until native callbacks arrived. In that state, the Android handler ignores install events, so the UI could stay stuck without showing progress.
Set retryInstall() to switch to Installing before invoking native install, ensuring immediate feedback and allowing retry events to be processed normally.

lib/services/package_manager/package_manager.dart

@@ -255,7 +255,9 @@ abstract class PackageManager extends StateNotifier<PackageManagerState> {
             filePath: op.filePath,
           ),
         );
-        if (op is Installing || op is SystemProcessing || op is ReadyToInstall) {
+        if (op is Installing ||
+            op is SystemProcessing ||
+            op is ReadyToInstall) {
           clearInstallSlot(appId);
           needsQueueProcessing = true;
         }
@@ -595,6 +597,10 @@ abstract class PackageManager extends StateNotifier<PackageManagerState> {
       return;
     }
 
+    // Exit InstallCancelled immediately so UI shows progress and native
+    // install events are no longer ignored by AndroidPackageManager.
+    setOperation(appId, Installing(target: op.target, filePath: op.filePath));
+
     await _performInstall(appId, op.target, op.filePath);
   }
 
@@ -1577,7 +1583,8 @@ final batchProgressProvider = Provider<BatchProgress?>((ref) {
 
   // Total excludes InstallCancelled — those are already resolved from the
   // batch's perspective and should not inflate the count.
-  final total = completed + downloading + verifying + installing + queued + failed;
+  final total =
+      completed + downloading + verifying + installing + queued + failed;
 
   // If only InstallCancelled operations remain, no batch to show
   if (total == 0) return null;
@@ -1598,8 +1605,8 @@ final batchProgressProvider = Provider<BatchProgress?>((ref) {
   final completedLabel = completedUpdates > 0 && completedInstalls == 0
       ? 'updated'
       : completedInstalls > 0 && completedUpdates == 0
-          ? 'installed'
-          : 'completed';
+      ? 'installed'
+      : 'completed';
 
   return BatchProgress(
     total: total,