Version 0.4.0

Changes:
- put ObservabilityMiddleware before ExceptionHandlerMiddleware to avoid repetative code
- add application startup and last metrics update metrics along with CPU usage metric and threads count
- move host and port to new uvicorn section at config along with new reload and forwarded_allow_ips
- add request_id and remove trace_id/span_id generation if tracing is disabled
- move logging logic from utils to observability
- pass trace_id/span_id in HEX form

{{project_slug}}/dependencies/connection_manager_dep.py.jinja

@@ -18,10 +18,17 @@ def init_dispencer(app: FastAPI, connection_manager: PostgresConnectionManager)
     app.state.postgres_connection_manager_dep = connection_manager
 
 
-def obtain(app_or_request: FastAPI | Request) -> PostgresConnectionManager:
-    """Get a PostgresConnectionManager from request's app state."""
-    if isinstance(app_or_request, Request):
-        app_or_request = app_or_request.app
-    if not hasattr(app_or_request.state, "postgres_connection_manager_dep"):
+def from_app(app: FastAPI) -> PostgresConnectionManager:
+    """Get a connection_manager from app state."""
+    if not hasattr(app.state, "postgres_connection_manager_dep"):
         raise ValueError("PostgresConnectionManager dispencer was not initialized at app preparation")
-    return app_or_request.state.postgres_connection_manager_dep
+    return app.state.postgres_connection_manager_dep
+
+
+async def from_request(request: Request) -> PostgresConnectionManager:
+    """Get a PostgresConnectionManager from request or app state."""
+    if hasattr(request.state, "postgres_connection_manager_dep"):
+        connection_manager = request.state.postgres_connection_manager_dep
+        if isinstance(connection_manager, PostgresConnectionManager):
+            return connection_manager
+    return from_app(request.app)