Fix plenary spotlight for guest speakers without user accounts.

Spotlight by participant uuid, add on-stage picker in stage layout, and show who is currently spotlighted in the plenary status bar.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/Feature/MeetWebTest.php

@@ -1048,6 +1048,66 @@ class MeetWebTest extends TestCase
         $this->assertCount(1, $room->setting('panels'));
     }
 
+    public function test_host_can_spotlight_guest_panelist_by_participant_uuid(): void
+    {
+        $room = Room::create([
+            'owner_ref' => $this->user->public_id,
+            'organization_id' => $this->organization->id,
+            'host_user_ref' => $this->user->public_id,
+            'title' => 'Summit keynote',
+            'type' => 'webinar',
+            'status' => 'live',
+            'scheduled_at' => now()->addHour(),
+            'timezone' => 'UTC',
+            'settings' => array_merge(config('meet.default_settings'), [
+                'stage_layout' => 'plenary',
+            ]),
+        ]);
+
+        $session = Session::create([
+            'owner_ref' => $this->user->public_id,
+            'room_id' => $room->id,
+            'media_room_name' => 'meet-'.$room->uuid,
+            'status' => 'live',
+            'started_at' => now(),
+        ]);
+
+        $hostParticipant = \App\Models\Participant::create([
+            'owner_ref' => $this->user->public_id,
+            'session_id' => $session->id,
+            'user_ref' => $this->user->public_id,
+            'display_name' => $this->user->name,
+            'role' => 'host',
+            'status' => 'joined',
+            'joined_at' => now(),
+        ]);
+
+        $guestSpeaker = \App\Models\Participant::create([
+            'owner_ref' => $this->user->public_id,
+            'session_id' => $session->id,
+            'display_name' => 'Guest Speaker',
+            'email' => 'speaker@example.com',
+            'role' => 'panelist',
+            'status' => 'joined',
+            'joined_at' => now(),
+        ]);
+
+        $this->actingAs($this->user)
+            ->withSession(["meet.participant.{$session->uuid}" => $hostParticipant->uuid])
+            ->postJson('/room/'.$session->uuid.'/stage', [
+                'stage_layout' => 'plenary',
+                'spotlight_speaker_ref' => $guestSpeaker->uuid,
+            ])
+            ->assertOk()
+            ->assertJson([
+                'stage_layout' => 'plenary',
+                'spotlight_speaker_ref' => $guestSpeaker->uuid,
+            ]);
+
+        $room->refresh();
+        $this->assertSame($guestSpeaker->uuid, $room->setting('spotlight_speaker_ref'));
+    }
+
     public function test_poll_includes_stage_config_for_conference(): void
     {
         $room = Room::create([