Fix startup autoplay and dictionary progress sequencing

- keep paused startup release retries aligned with the full gate window
- restore dictionary sync progress and reuse merged zips on unchanged revisits
- surface later dictionary OSD updates once tokenization is ready

src/main/runtime/startup-osd-sequencer.test.ts

@@ -62,7 +62,10 @@ test('startup OSD buffers checking behind annotations and replaces it with later
     makeDictionaryEvent('generating', 'Generating character dictionary for Frieren...'),
   );
 
-  assert.deepEqual(osdMessages, ['Loading subtitle annotations |']);
+  assert.deepEqual(osdMessages, [
+    'Loading subtitle annotations |',
+    'Generating character dictionary for Frieren...',
+  ]);
 
   sequencer.markAnnotationLoadingComplete('Subtitle annotations loaded');
 
@@ -154,3 +157,30 @@ test('startup OSD reset keeps tokenization ready after first warmup', () => {
 
   assert.deepEqual(osdMessages, ['Updating character dictionary for Frieren...']);
 });
+
+test('startup OSD shows later dictionary progress immediately once tokenization is ready', () => {
+  const osdMessages: string[] = [];
+  const sequencer = createStartupOsdSequencer({
+    showOsd: (message) => {
+      osdMessages.push(message);
+    },
+  });
+
+  sequencer.showAnnotationLoading('Loading subtitle annotations |');
+  sequencer.markTokenizationReady();
+  sequencer.notifyCharacterDictionaryStatus(
+    makeDictionaryEvent('generating', 'Generating character dictionary for Frieren...'),
+  );
+
+  assert.deepEqual(osdMessages, [
+    'Loading subtitle annotations |',
+    'Generating character dictionary for Frieren...',
+  ]);
+
+  sequencer.markAnnotationLoadingComplete('Subtitle annotations loaded');
+
+  assert.deepEqual(osdMessages, [
+    'Loading subtitle annotations |',
+    'Generating character dictionary for Frieren...',
+  ]);
+});