ifcmcp: sse,streamable-http transports and --help

src/ifcmcp/ifcmcp/__main__.py

@@ -1,10 +1,36 @@
 # This file was generated with the assistance of an AI coding tool.
-from ifcmcp.server import build_server
+import argparse
+
+from ifcmcp import __version__
 
 
 def main():
+    parser = argparse.ArgumentParser(
+        prog="python3 -m ifcmcp",
+        description=(
+            "ifcmcp — MCP server for IFC building models.\n\n"
+            "Runs a Model Context Protocol server over stdio so that MCP clients\n"
+            "can query and edit IFC files without writing them to disk between\n"
+            "operations.\n\n"
+            "Add to .mcp.json to configure:\n"
+            '  {"mcpServers": {"ifc": {"type": "stdio", "command": "python3", "args": ["-m", "ifcmcp"]}}}'
+        ),
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+    )
+    parser.add_argument("--version", action="version", version=f"ifcmcp {__version__}")
+    parser.add_argument(
+        "--transport",
+        choices=["stdio", "sse", "streamable-http"],
+        default="stdio",
+        help="MCP transport to use (default: stdio)",
+    )
+
+    args = parser.parse_args()
+
+    from ifcmcp.server import build_server
+
     server = build_server()
-    server.run(transport="stdio")
+    server.run(transport=args.transport)
 
 
 if __name__ == "__main__":