feat(pyproject): androidtvremote2 dev dependency; manager docstring covers both transports

pyproject.toml

@@ -14,6 +14,7 @@ dev = [
     "pytest>=8.0",
     "pytest-asyncio>=0.23",
     "ruff>=0.4",
+    "androidtvremote2>=0.2.0",
 ]
 # The shared ADB helpers are vendored at
 # custom_components/nvidia_shield/ha_adb_common/ — the only consumed copy in