fix: preserve app identity through FFmpeg preflight

Sources/Launcher/FFmpegRuntime.swift

@@ -32,7 +32,7 @@ enum FFmpegRuntime {
                 let detail = dlerror().map { String(cString: $0) } ?? "The dynamic loader could not load this library."
                 return "The FFmpeg libraries required by this build are unavailable or broken.\n\nRequired library: \(path)\n\(detail)\n\nInstall FFmpeg with `brew install ffmpeg`. If FFmpeg was upgraded or its library versions changed, rebuild and reinstall terebi."
             }
-            // Deliberately never dlclose: retain successful loads until exit or bootstrap exec.
+            // Deliberately never dlclose: retain successful loads until exit.
         }
         return nil
     }