Rename packages for PyPI: winegard-birdcage + mcbirdcage

Core library published as winegard-birdcage (import stays `birdcage`).
MCP server renamed birdcage-mcp → mcbirdcage, matching mcserial pattern.
Both packages live on PyPI — `uvx mcbirdcage` works out of the box.

mcp/tests/conftest.py

@@ -1,4 +1,4 @@
-"""Shared fixtures for birdcage-mcp tests.
+"""Shared fixtures for mcbirdcage tests.
 
 Uses FastMCP's run_server_async to spin up a real MCP server backed by
 DemoDevice + DemoCraftClient. No serial hardware, no subprocesses.
@@ -13,7 +13,7 @@ from fastmcp import Client, FastMCP
 from fastmcp.client.transports import StreamableHttpTransport
 from fastmcp.utilities.tests import run_server_async
 
-from birdcage_mcp.state import BirdcageState
+from mcbirdcage.state import BirdcageState
 
 
 @asynccontextmanager
@@ -36,8 +36,8 @@ async def _test_lifespan(server: FastMCP):
 
 def _build_server() -> FastMCP:
     """Build a FastMCP server with all tools registered."""
-    from birdcage_mcp import prompts, resources
-    from birdcage_mcp.tools import (
+    from mcbirdcage import prompts, resources
+    from mcbirdcage.tools import (
         connection,
         console,
         movement,