[fix] reduce duplicate fastapi telemetry

adapter/http/fastapi/app.py

@@ -1,7 +1,11 @@
+from collections.abc import Callable
+
+from opentelemetry.instrumentation.fastapi import FastAPIInstrumentor
+
 from adapter.config.loader import load_config
 from adapter.config.model import AppConfig
-from adapter.http.fastapi.dependencies import APP_CONFIG_STATE
-from adapter.http.fastapi.lifespan import app_lifespan
+from adapter.di.container import AppContainer, build_container
+from adapter.http.fastapi.dependencies import APP_CONFIG_STATE, APP_CONTAINER_STATE
 from adapter.http.fastapi.middleware import register_middleware
 from adapter.http.fastapi.routers.v1.router import router as v1_router
 from fastapi import FastAPI
@@ -11,8 +15,51 @@ API_V1_PREFIX = '/api/v1'
 
 def create_app(config: AppConfig | None = None) -> FastAPI:
     app_config = load_config() if config is None else config
-    app = FastAPI(title=app_config.app.name, lifespan=app_lifespan)
-    setattr(app.state, APP_CONFIG_STATE, app_config)
-    register_middleware(app, app_config)
-    app.include_router(v1_router, prefix=API_V1_PREFIX)
-    return app
+    container = build_container(config=app_config)
+    app: FastAPI | None = None
+
+    try:
+        app = FastAPI(title=app_config.app.name)
+        setattr(app.state, APP_CONFIG_STATE, app_config)
+        setattr(app.state, APP_CONTAINER_STATE, container)
+        app.add_event_handler('shutdown', _build_shutdown_handler(app, container))
+        register_middleware(app, app_config)
+        app.include_router(v1_router, prefix=API_V1_PREFIX)
+
+        FastAPIInstrumentor.instrument_app(
+            app,
+            tracer_provider=container.observability.tracer_provider,
+            meter_provider=container.observability.meter_provider,
+            exclude_spans=['send', 'receive'],
+        )
+
+        return app
+    except Exception:
+        try:
+            if app is not None:
+                _uninstrument_app(app)
+        finally:
+            container.shutdown()
+        raise
+
+
+def _build_shutdown_handler(
+    app: FastAPI,
+    container: AppContainer,
+) -> Callable[[], None]:
+    def shutdown() -> None:
+        try:
+            _uninstrument_app(app)
+        finally:
+            container.shutdown()
+
+    return shutdown
+
+
+def _uninstrument_app(app: FastAPI) -> None:
+    if _is_instrumented(app):
+        FastAPIInstrumentor.uninstrument_app(app)
+
+
+def _is_instrumented(app: FastAPI) -> bool:
+    return bool(getattr(app, '_is_instrumented_by_opentelemetry', False))