Auto-queue transcription on upload and clarify pending status.

Batch uploads were only storing files as pending without dispatching Whisper jobs; queue them immediately, add a bulk pending action, and show human-readable status labels.

app/Http/Controllers/TranscribePendingController.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Recording;
+use Illuminate\Http\RedirectResponse;
+
+class TranscribePendingController extends Controller
+{
+    /**
+     * Queue local transcription for recordings that still need a transcript.
+     */
+    public function __invoke(): RedirectResponse
+    {
+        $queued = 0;
+
+        Recording::query()
+            ->whereIn('transcription_status', ['pending', 'failed', 'cancelled'])
+            ->orderBy('id')
+            ->each(function (Recording $recording) use (&$queued): void {
+                if ($recording->hasActiveTranscriptionJob()) {
+                    return;
+                }
+
+                $recording->queueLocalTranscription();
+                $queued++;
+            });
+
+        if ($queued === 0) {
+            return back()->with('error', 'No recordings need transcription right now.');
+        }
+
+        return back()->with(
+            'success',
+            $queued === 1
+                ? 'Queued 1 recording for transcription.'
+                : "Queued {$queued} recordings for transcription.",
+        );
+    }
+}