++

backend/app/main.py

@@ -27,16 +27,35 @@ from app.services.i18n import parse_accept_language
 from app.api.simulate import router as simulate_router
 from app.api.agents import router as agents_router
 from app.api.gallery import router as gallery_router
-from app.api.presets import router as presets_router
-
-logging.basicConfig(level=logging.INFO, format="%(asctime)s %(name)s %(levelname)s %(message)s")
-logger = logging.getLogger(__name__)
+from app.api.presets import router as presets_router
+from app.services.simulation_logging import (
+    ChineseSimulationFormatter,
+    install_simulation_log_handler,
+)
+
+logging.basicConfig(level=logging.INFO, format="%(asctime)s %(name)s %(levelname)s %(message)s")
+install_simulation_log_handler()
+# Use Chinese labels for the terminal's timestamp/level/module metadata too;
+# the original message is kept intact so stack traces and search terms remain
+# useful when diagnosing third-party libraries.
+for _handler in logging.getLogger().handlers:
+    if not isinstance(_handler, logging.NullHandler):
+        _handler.setFormatter(ChineseSimulationFormatter())
+logger = logging.getLogger(__name__)
 
 
 @asynccontextmanager
-async def lifespan(app: FastAPI):
-    logs_dir = Path(__file__).resolve().parent.parent / "logs"
-    logs_dir.mkdir(parents=True, exist_ok=True)
+async def lifespan(app: FastAPI):
+    # Keep user-authored scenario files available even before the first
+    # presets request (and create the folder on a fresh checkout).
+    custom_simulation_dir = Path(__file__).resolve().parents[2] / "custom_simulation"
+    custom_simulation_dir.mkdir(parents=True, exist_ok=True)
+    logs_dir = Path(__file__).resolve().parent.parent / "logs"
+    logs_dir.mkdir(parents=True, exist_ok=True)
+    # Project-level text logs are created per simulation, but ensure the
+    # directory exists as soon as the application starts.
+    project_logs_dir = Path(__file__).resolve().parents[2] / "logs"
+    project_logs_dir.mkdir(parents=True, exist_ok=True)
 
     store = SimulationStore(settings.database_dir)
     await store.init()
@@ -48,9 +67,9 @@ async def lifespan(app: FastAPI):
     try:
         interrupted = await store.sweep_orphan_running_sims()
         if interrupted:
-            logger.warning("Marked %d orphan simulations as interrupted", interrupted)
+            logger.warning("已将 %d 个遗留模拟标记为已中断", interrupted)
     except Exception as e:  # pragma: no cover - best effort
-        logger.warning("Orphan sweep failed: %s", e)
+        logger.warning("清理遗留模拟失败：%s", e)
 
     llm = LLMClient(
         api_key=settings.llm_api_key,
@@ -84,9 +103,9 @@ async def lifespan(app: FastAPI):
     app.state.event_queues = {}
     app.state.cancelled_sims = set()
 
-    logger.info("MiroSociety started — LLM: %s @ %s", settings.llm_model, settings.llm_base_url)
+    logger.info("MiroSociety 已启动：模型=%s，地址=%s", settings.llm_model, settings.llm_base_url)
     yield
-    logger.info("MiroSociety shutting down")
+    logger.info("MiroSociety 正在关闭")
 
 
 app = FastAPI(title="MiroSociety", version="0.1.0", lifespan=lifespan)