Stream Whisper segments so the UI can show live transcript text.

Consume faster-whisper SSE instead of blocking on one JSON response, persist growing text and progress over Reverb, and drop the fake percent heartbeat.

tests/Feature/Recordings/ShowTest.php

@@ -83,6 +83,30 @@ class ShowTest extends TestCase
             ->assertSee('Queued — waiting to start…');
     }
 
+    public function test_show_page_includes_partial_transcript_while_processing(): void
+    {
+        $user = User::factory()->create();
+        $this->actingAs($user);
+
+        $recording = Recording::query()->create([
+            'user_id' => $user->id,
+            'title' => 'Live words',
+            'original_filename' => 'active.mp3',
+            'file_path' => 'recordings/active.mp3',
+            'file_size_bytes' => 100,
+            'transcription_status' => 'processing',
+            'transcription_progress' => 'Transcribing locally…',
+            'transcription_percent' => 62,
+            'transcription_driver' => 'local',
+            'transcription_started_at' => now(),
+            'transcript' => 'Live partial sentence from whisper',
+        ]);
+
+        Livewire::test(Show::class, ['recording' => $recording])
+            ->assertSee('Live partial sentence from whisper')
+            ->assertSee('status.transcript', false);
+    }
+
     public function test_show_does_not_poll_when_transcription_is_idle(): void
     {
         $user = User::factory()->create();