feat(mcp): serve the toolkit via mcp-gate; retire mcp_tools.py and the old FastMCP-based command

tests/test_mcp_server_command.py

@@ -0,0 +1,24 @@
+import pytest
+from mcp_gate import OpenIdentity, StaticTokenIdentity
+
+from bambu_run.management.commands.bambu_mcp_server import ALL_CAPABILITIES, _build_gate
+from bambu_run.mcp.toolkit import build_toolkit
+
+
+def test_build_gate_stdio_uses_open_identity_with_all_capabilities():
+    gate = _build_gate(build_toolkit(), transport="stdio")
+    assert isinstance(gate.identity, OpenIdentity)
+
+
+def test_build_gate_http_requires_api_key():
+    with pytest.raises(ValueError, match="BAMBU_RUN_MCP_API_KEY"):
+        _build_gate(build_toolkit(), transport="http", api_key=None)
+
+
+def test_build_gate_http_with_key_uses_static_token_identity():
+    gate = _build_gate(build_toolkit(), transport="http", api_key="secret123")
+    assert isinstance(gate.identity, StaticTokenIdentity)
+
+
+def test_all_capabilities_matches_the_three_spec_capabilities():
+    assert set(ALL_CAPABILITIES) == {"read_printer", "read_print_history", "read_filament"}