Generate AI summaries when meetings end, not only after recordings.

Queue summarization on session end (with a short delay for late captions),
keep recording-ready as a refresh path, and unique the summary job so end
plus recording do not double-process the same transcript.

app/Services/Meet/SessionService.php

@@ -81,7 +81,15 @@ class SessionService
 
         app(UsageMeteringService::class)->recordSessionUsage($session);
 
-        return $session;
+        // Summarize on meeting end (not only when a recording is ready). Short delay
+        // lets the last caption/chat POSTs land before the transcript is finalized.
+        $session->loadMissing('room');
+        $transcripts = app(TranscriptService::class);
+        if ($transcripts->shouldAutoSummarize($session)) {
+            $transcripts->finalizeAndSummarize($session->fresh(), null, 20);
+        }
+
+        return $session->fresh();
     }
 
     public function joinParticipant(