test(uploads): a recording with a video track is accepted (red)

A Teams meeting with the camera off is still an .mp4 with a video track.
Video with no audio is now rejected as having no audio.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

internal/uploads/validate_test.go

@@ -29,16 +29,14 @@ func TestValidate(t *testing.T) {
 			probe: uploads.Probe{Duration: 90 * time.Minute, HasAudio: true},
 		},
 		{
-			name:       "a file with a video stream is rejected and names issue 28",
+			name:  "a recording that also has a video stream is accepted: the audio is what is used",
 			probe: uploads.Probe{Duration: 4 * time.Minute, HasAudio: true, HasVideo: true},
-			wantReason: uploads.ReasonVideo,
-			wantInMsg:  []string{"video", "#28"},
 		},
 		{
-			name:       "video with no audio is still rejected as video, not as missing audio",
+			name:       "video with no audio is rejected as having no audio, and says so",
 			probe:      uploads.Probe{Duration: 4 * time.Minute, HasVideo: true},
-			wantReason: uploads.ReasonVideo,
-			wantInMsg:  []string{"#28"},
+			wantReason: uploads.ReasonNoAudio,
+			wantInMsg:  []string{"no audio"},
 		},
 		{
 			name:       "a file with no audio stream is rejected",