feat(config): default to WebSocket and migrate saved HTTP settings

artemis/config/settings.py

@@ -19,6 +19,7 @@ from pathlib import Path
 from typing import Literal
 
 from dotenv import load_dotenv
+from filelock import Timeout
 from pydantic import Field, SecretStr, model_validator
 from pydantic_settings import BaseSettings
 
@@ -32,6 +33,7 @@ from artemis.config.constants import (
     ENV_OPENAI_API_KEY,
     ENV_VISION_API_KEY,
 )
+from artemis.config.environment import migrate_transport_default
 from artemis.config.paths import (
     GLOBAL_APP_DIR,
     get_data_engine_db_path,
@@ -43,13 +45,18 @@ from artemis.utils.logger import get_logger
 
 # Installed wheels load .env from the user directory, outside site-packages.
 _canonical_env = get_env_file()
+logger = get_logger(__name__)
+try:
+    if migrate_transport_default(_canonical_env):
+        logger.info("已将全局模型传输协议迁移为 WebSocket；之后可在模型配置中切回 HTTP。")
+except (OSError, Timeout):
+    os.environ["OPENAI_TRANSPORT"] = "websocket"
+    logger.warning("无法保存 WebSocket 默认迁移；本次使用 WebSocket，下次启动重试。")
 load_dotenv(dotenv_path=_canonical_env, verbose=True)
 _global_env = GLOBAL_APP_DIR / ".env"
 if _global_env.exists() and _global_env.resolve() != _canonical_env.resolve():
     load_dotenv(dotenv_path=_global_env, verbose=True)
 
-logger = get_logger(__name__)
-
 
 def is_placeholder_key(val: str | SecretStr | None) -> bool:
     """Check if an API credential is empty or an unconfigured placeholder value."""
@@ -110,7 +117,7 @@ class Settings(BaseSettings):
     OPENAI_BASE_URL: str | None = "https://api-n-cd.playones.com/v1"
     OPENAI_MODEL: str = Field(default=DEFAULT_MODEL, min_length=1)
     OPENAI_TIMEOUT_SECONDS: float = Field(default=300.0, gt=0)
-    OPENAI_TRANSPORT: Literal["http", "websocket"] = "http"
+    OPENAI_TRANSPORT: Literal["http", "websocket"] = "websocket"
     # Environment only; deliberately absent from the saved UI/task configuration.
     OPENAI_USE_SYSTEM_PROXY: bool = False
     OPENAI_MAX_RETRIES: int = Field(default=5, ge=0, le=10)