Add birdcage-mcp FastMCP server for satellite dish control

34 tools (connection, movement, signal, system, satellite, console),
5 resources, 3 prompts. Backed by DemoDevice for offline testing.
46 tests passing against the demo backend via run_server_async.

mcp/tests/test_satellite.py

@@ -0,0 +1,86 @@
+"""Tests for satellite tracking tools."""
+
+import pytest
+from conftest import parse_result
+from fastmcp import Client
+
+
+@pytest.mark.anyio
+async def test_search_satellites(mcp_client: Client):
+    result = await mcp_client.call_tool(
+        "search_satellites", {"query": "ISS"}
+    )
+    data = parse_result(result)
+    assert data["count"] >= 1
+    names = [r["name"] for r in data["results"]]
+    assert any("ISS" in n for n in names)
+
+
+@pytest.mark.anyio
+async def test_search_no_results(mcp_client: Client):
+    result = await mcp_client.call_tool(
+        "search_satellites", {"query": "nonexistent_xyz"}
+    )
+    data = parse_result(result)
+    assert data["count"] == 0
+
+
+@pytest.mark.anyio
+async def test_search_with_limit(mcp_client: Client):
+    result = await mcp_client.call_tool(
+        "search_satellites", {"query": "", "limit": 3}
+    )
+    data = parse_result(result)
+    # Empty query won't match any catalog entries
+    assert data["count"] >= 0
+
+
+@pytest.mark.anyio
+async def test_get_passes(mcp_client: Client):
+    result = await mcp_client.call_tool(
+        "get_passes", {"norad_id": 25544}
+    )
+    data = parse_result(result)
+    assert data["count"] > 0
+    p = data["passes"][0]
+    assert "aos_time" in p
+    assert "tca_time" in p
+    assert "los_time" in p
+    assert "max_elevation" in p
+    assert p["norad_id"] == 25544
+
+
+@pytest.mark.anyio
+async def test_get_next_pass(mcp_client: Client):
+    result = await mcp_client.call_tool(
+        "get_next_pass", {"norad_id": 25544}
+    )
+    data = parse_result(result)
+    assert data["pass"] is not None
+    assert data["pass"]["satellite_name"] == "ISS (ZARYA)"
+
+
+@pytest.mark.anyio
+async def test_get_visible_targets(mcp_client: Client):
+    result = await mcp_client.call_tool(
+        "get_visible_targets", {}
+    )
+    data = parse_result(result)
+    # Celestial bodies (Moon, Sun, Jupiter) are always visible
+    assert data["count"] >= 1
+    names = [t["name"] for t in data["targets"]]
+    # At least celestial bodies should be present
+    assert any(
+        n in names for n in ("Moon", "Sun", "Jupiter")
+    )
+
+
+@pytest.mark.anyio
+async def test_get_visible_targets_with_min_alt(mcp_client: Client):
+    result = await mcp_client.call_tool(
+        "get_visible_targets", {"min_alt": 80.0}
+    )
+    data = parse_result(result)
+    # Very high min_alt should filter out most targets
+    for t in data["targets"]:
+        assert t["altitude"] >= 80.0