feat: Add CLI for PyServe with configuration options

- Introduced a new CLI module (`cli.py`) to manage server configurations via command line arguments.
- Added script entry point in `pyproject.toml` for easy access to the CLI.
- Enhanced `Config` class to load configurations from a YAML file.
- Updated `__init__.py` to include `__version__` in the module exports.
- Added optional dependencies for development tools in `pyproject.toml`.
- Implemented logging improvements and error handling in various modules.
- Created tests for the CLI functionality to ensure proper behavior.
- Removed the old `run.py` implementation in favor of the new CLI approach.

pyserve/cli.py

@@ -0,0 +1,72 @@
+import sys
+import argparse
+from pathlib import Path
+
+from . import PyServeServer, Config, __version__
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="PyServe - HTTP web server",
+        prog="pyserve"
+    )
+    parser.add_argument(
+        "-c", "--config",
+        default="config.yaml",
+        help="Path to configuration file (default: config.yaml)"
+    )
+    parser.add_argument(
+        "--host",
+        help="Host to bind the server to"
+    )
+    parser.add_argument(
+        "--port",
+        type=int,
+        help="Port to bind the server to"
+    )
+    parser.add_argument(
+        "--debug",
+        action="store_true",
+        help="Enable debug mode"
+    )
+    parser.add_argument(
+        "--version",
+        action="version",
+        version=f"%(prog)s {__version__}"
+    )
+
+    args = parser.parse_args()
+
+    config_path = args.config
+    if not Path(config_path).exists():
+        print(f"Configuration file {config_path} not found")
+        print("Using default configuration")
+        config = Config()
+    else:
+        try:
+            config = Config.from_yaml(config_path)
+        except Exception as e:
+            print(f"Configuration loading error: {e}")
+            sys.exit(1)
+
+    if args.host:
+        config.server.host = args.host
+    if args.port:
+        config.server.port = args.port
+    if args.debug:
+        config.logging.level = "DEBUG"
+
+    server = PyServeServer(config)
+
+    try:
+        print(f"Starting PyServe server on {config.server.host}:{config.server.port}")
+        server.run()
+    except KeyboardInterrupt:
+        print("\nServer stopped by user")
+    except Exception as e:
+        print(f"Server startup error: {e}")
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()