Enhance impact analysis and configuration for vector persistence and API integration. Update main.spec to clarify data handling for ChromaDB, ensuring vector directories are excluded from packaging. Modify Text2SQLOrchestrator to unify question normalization for consistent SQL generation across languages. Introduce SchemaIndexer improvements for persistent vector storage and optimize embedding retrieval processes. Update documentation and comments for clarity on configuration changes and behavior adjustments.

backend/main.py

@@ -377,7 +377,7 @@ def main():
     parser.add_argument(
         "--no-translate-en",
         action="store_true",
-        help="关闭英文问句自动译为中文（默认开启；也可用 TRANSLATE_EN_TO_ZH=false）",
+        help="关闭问句归一中文（默认开启：中英均先归一句中文以利 SQL 一致；也可用 TRANSLATE_EN_TO_ZH=false）",
     )
 
     args = parser.parse_args()