Add KL400L5 color temperature range (#1719)

- add the KL400L5 color temperature range used by newer firmware
- add a KL400L5(US) 1.0.11 fixture that reports variable color
temperature support
- categorize that fixture as variable color temperature while keeping
older KL400L5 fixtures non-variable
- The Tapo app exposes 2500K-9000K for these KL400L5 strips, so this PR
uses that app-visible range.

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

tests/device_fixtures.py

@@ -55,6 +55,9 @@ BULBS_IOT_VARIABLE_TEMP = {
     "KL135",
     "KL430",
 }
+# KL400L5 firmware 1.0.5 and 1.0.8 fixtures report no variable color temperature
+# support, so match the supporting 1.0.11 fixture rather than the entire model.
+BULBS_IOT_VARIABLE_TEMP_FIXTURES = {"KL400L5(US)_1.0_1.0.11"}
 BULBS_IOT_COLOR = {"LB130", "KL125", "KL130", "KL135", *BULBS_IOT_LIGHT_STRIP}
 BULBS_IOT_DIMMABLE = {"KL50", "KL60", "LB100", "LB110", "KL110", "KL110B"}
 BULBS_IOT = (
@@ -274,16 +277,23 @@ dimmable_iot = parametrize("dimmable", model_filter=DIMMABLE, protocol_filter={"
 non_dimmable_iot = parametrize(
     "non-dimmable", model_filter=BULBS - DIMMABLE, protocol_filter={"IOT"}
 )
-variable_temp = parametrize(
+variable_temp_by_model = parametrize(
     "variable color temp",
     model_filter=BULBS_VARIABLE_TEMP,
     protocol_filter={"SMART", "IOT"},
 )
+variable_temp_by_fixture = parametrize(
+    "variable color temp fixtures",
+    model_filter=BULBS_IOT_VARIABLE_TEMP_FIXTURES,
+    protocol_filter={"IOT"},
+)
+variable_temp = parametrize_combine([variable_temp_by_model, variable_temp_by_fixture])
 non_variable_temp = parametrize(
     "non-variable color temp",
     model_filter=BULBS - BULBS_VARIABLE_TEMP,
     protocol_filter={"SMART", "IOT"},
 )
+non_variable_temp = parametrize_subtract(non_variable_temp, variable_temp_by_fixture)
 color_bulb = parametrize(
     "color bulbs", model_filter=BULBS_COLOR, protocol_filter={"SMART", "IOT"}
 )
@@ -296,11 +306,14 @@ non_color_bulb = parametrize(
 color_bulb_iot = parametrize(
     "color bulbs iot", model_filter=BULBS_IOT_COLOR, protocol_filter={"IOT"}
 )
-variable_temp_iot = parametrize(
+variable_temp_iot_by_model = parametrize(
     "variable color temp iot",
     model_filter=BULBS_IOT_VARIABLE_TEMP,
     protocol_filter={"IOT"},
 )
+variable_temp_iot = parametrize_combine(
+    [variable_temp_iot_by_model, variable_temp_by_fixture]
+)
 variable_temp_smart = parametrize(
     "variable color temp smart",
     model_filter=BULBS_SMART_VARIABLE_TEMP,