Add dummy line THE END

step4_translate.py

@@ -247,6 +247,12 @@ def translate_file(input_path: Path, client: OpenAI, model: str) -> Path:
             skipped_count += 1
             continue
         
+        # Skip dummy "THE END" line (added by step 2 for timing purposes)
+        if english.strip() == "THE END":
+            line_data["chinese"] = english  # Keep as-is
+            skipped_count += 1
+            continue
+        
         cached = get_cached_translation(english)
         if cached:
             line_data["chinese"] = cached