fix: cross-platform test path + suppress asyncio warnings in CI

- test_absolute_path_unchanged: use tmp_path instead of hardcoded
  Unix path /absolute/path/results (fails on Windows as C:\absolute...)
- Suppress PytestUnraisableExceptionWarning (Event loop is closed)
  in Windows CI tests

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: HanSur94

.github/workflows/ci.yml

@@ -97,7 +97,7 @@ jobs:
         run: |
           call .venv\Scripts\activate.bat
           pip install pytest pytest-asyncio pytest-cov --quiet
-          pytest tests/ -v -k "not matlab" --ignore=tests/test_integration.py || echo Tests completed
+          pytest tests/ -v -k "not matlab" --ignore=tests/test_integration.py -W ignore::pytest.PytestUnraisableExceptionWarning
 
   docker:
     needs: lint

tests/test_config.py

@@ -166,9 +166,9 @@ def test_relative_temp_dir_resolved(self, tmp_path: Path):
         assert Path(cfg.execution.temp_dir).is_absolute()
 
     def test_absolute_path_unchanged(self, tmp_path: Path):
-        abs_dir = "/absolute/path/results"
+        abs_dir = str(tmp_path / "absolute" / "path" / "results")
         config_file = tmp_path / "config.yaml"
-        config_file.write_text(f"server:\n  result_dir: {abs_dir}\n")
+        config_file.write_text(f"server:\n  result_dir: '{abs_dir}'\n")
         cfg = load_config(config_file)
         assert cfg.server.result_dir == abs_dir