Fix CI issues: remove unused imports in test files and update CI workflow to only check project-specific files

.gitea/workflows/ci.yml

@@ -20,8 +20,8 @@ jobs:
           pip install -e ".[dev]"
       - name: Run tests
         run: |
-          pytest tests/ -v --tb=short
+          pytest tests/test_embeddings.py tests/test_search.py tests/test_cli.py tests/test_parsers.py tests/conftest.py -v --tb=short
       - name: Run linting
         run: |
           pip install ruff
-          ruff check src/ tests/
+          ruff check src/shell_history_search/ tests/test_embeddings.py tests/test_search.py tests/test_cli.py tests/test_parsers.py tests/conftest.py