add readming mode

sentence_api/config.py

@@ -31,6 +31,7 @@ class Settings:
     ai_api_key: str
     ai_model: str
     ai_timeout_seconds: float
+    ai_translation_timeout_seconds: float
     pass_score: float
     volcano_oss_access_key: str
     volcano_oss_secret_key: str
@@ -71,6 +72,9 @@ class Settings:
             ai_api_key=os.getenv("AI_API_KEY", "").strip(),
             ai_model=os.getenv("AI_MODEL", "gpt-4o-mini"),
             ai_timeout_seconds=float(os.getenv("AI_TIMEOUT_SECONDS", "45")),
+            ai_translation_timeout_seconds=float(
+                os.getenv("AI_TRANSLATION_TIMEOUT_SECONDS", "120")
+            ),
             pass_score=float(os.getenv("ASSESSMENT_PASS_SCORE", "70")),
             volcano_oss_access_key=os.getenv("VOLCANO_OSS_ACCESS_KEY", "").strip(),
             volcano_oss_secret_key=os.getenv("VOLCANO_OSS_SECRET_KEY", "").strip(),