Move run_tests.py directly to 'make test'

Makefile

@@ -39,7 +39,7 @@ test-deps:
 # Test the package
 test:
 	@echo "Running tests..."
-	python3 run_tests.py
+	python3 -m pytest tests/ -v --tb=short
 
 # Rebuild and reinstall (useful during development)
 dev: clean build

run_tests.py

@@ -1,50 +0,0 @@
-#!/usr/bin/env python3
-
-"""
-Test runner script for kumacli
-
-Usage:
-    python run_tests.py              # Run all tests
-    python run_tests.py --cov        # Run tests with coverage
-    python run_tests.py tests/test_info.py  # Run specific test file
-"""
-
-import sys
-import subprocess
-
-
-def run_tests(args=None):
-    """Run pytest with optional arguments"""
-    # Use python3 explicitly for compatibility
-    cmd = ["python3", "-m", "pytest"]
-
-    if args:
-        cmd.extend(args)
-    else:
-        cmd.extend(["tests/", "-v", "--tb=short"])
-
-    try:
-        result = subprocess.run(cmd, check=True)
-        return result.returncode
-    except subprocess.CalledProcessError as e:
-        print(f"Tests failed with exit code: {e.returncode}")
-        return e.returncode
-    except FileNotFoundError:
-        print("pytest not found. Install with: pip install pytest")
-        return 1
-
-
-def main():
-    """Main entry point"""
-    if len(sys.argv) > 1:
-        # Pass through command line arguments
-        args = sys.argv[1:]
-    else:
-        args = None
-
-    exit_code = run_tests(args)
-    sys.exit(exit_code)
-
-
-if __name__ == "__main__":
-    main()