Fine tune default log format

Use levelprefix for uvicorn.logging.DefaultFormatte.
Move filename and position to end of line so that information is arranged
in most important order from left to right within the line, where the message
came from being least relevant in my thinking compared to the time, log level,
and actual message.

Author: samdoran

src/constants.py

@@ -229,7 +229,7 @@
 DEFAULT_LOG_LEVEL: Final[str] = "INFO"
 # Default log format for plain-text logging in non-TTY environments
 DEFAULT_LOG_FORMAT: Final[str] = (
-    "%(asctime)s %(levelname)-8s %(name)s:%(lineno)d %(message)s"
+    "%(asctime)s.%(msecs)03d %(levelprefix)s %(message)s  [%(name)s:%(lineno)d]"
 )
 # Environment variable to force StreamHandler instead of RichHandler
 # Set to any non-empty value to disable RichHandler