fix(modes): only activate peripherals and show individual seat actions

tests/unit/test_scene_composer_fast_path.py

@@ -695,9 +695,7 @@ def test_romantic_template_always_adds_authorized_decorative_lights() -> None:
     )
     assert _peripheral_refs(observed[0]) == [
         "ir:flash-open-000000000001",
-        "ir:flash-red-0000000000002",
         "ir:strip-open-000000000001",
-        "ir:strip-red-0000000000002",
         "ir:ambient-open-0000000001",
     ]
     assert "ir:flash-close-00000000003" not in _peripheral_refs(observed[0])
@@ -742,9 +740,7 @@ def test_romantic_cinema_template_keeps_native_base_and_adds_lights_without_mode
     assert native_requests == template["plan"]["requests"]
     assert _peripheral_refs(observed[0]) == [
         "ir:flash-open-000000000001",
-        "ir:flash-red-0000000000002",
         "ir:strip-open-000000000001",
-        "ir:strip-red-0000000000002",
         "ir:ambient-open-0000000001",
     ]
 
@@ -1220,8 +1216,8 @@ def test_unknown_mode_uses_one_structured_turn_then_local_dry_run() -> None:
         "required_refs": [],
         "selection_goal": (
             "Include as many semantically relevant scene-safe peripheral devices "
-            "as are useful; normally choose activation plus at most one stable "
-            "state action per device."
+            "as are useful; choose only one authorized power-on "
+            "action per device, without color or effect settings."
         ),
         "required_reason": "No peripheral action is mandatory for this name.",
     }