fix: update logging level retrieval in structlog configuration

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.1] - 2026-04-05
+
+### Fixed
+
+- **structlog API compatibility** — replaced `structlog.get_level_from_name()` with `logging.getLevelName()` from the stdlib for compatibility with structlog ≥ 25.x which removed that function
+
 ## [0.4.0] - 2026-03-30
 
 ### Added

src/summarizer/main.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import asyncio
+import logging
 import sys
 from dataclasses import dataclass
 from datetime import UTC, datetime
@@ -615,7 +616,7 @@ async def run() -> None:
 
     structlog.configure(
         wrapper_class=structlog.make_filtering_bound_logger(
-            structlog.get_level_from_name(settings.log_level)
+            logging.getLevelName(settings.log_level.upper())
         ),
     )