Update FirebaseAI/Sources/AILog.swift

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: paulb777

FirebaseAI/Sources/AILog.swift

@@ -142,7 +142,7 @@ enum AILog {
 
   static func makeInternalError(message: String, code: MessageCode) -> GenerateContentError {
     let error = GenerateContentError.internalError(underlying: NSError(
-      domain: "",
+      domain: "com.google.generative-ai",
       code: -1,
       userInfo: [NSLocalizedDescriptionKey: message]
     ))