Add Daylight Cycle and Candlelight CSS source types

Full-stack implementation of two new color strip source types:
- Daylight: simulates day/night color cycle with real-time or speed-based mode, latitude support
- Candlelight: multi-candle fire simulation with Gaussian falloff, layered-sine flicker, warm color shift

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/wled_controller/static/locales/en.json

@@ -913,6 +913,28 @@
   "color_strip.notification.endpoint.hint": "Use this URL to trigger notifications from external systems. POST with optional JSON body: {\"app\": \"AppName\", \"color\": \"#FF0000\"}.",
   "color_strip.notification.save_first": "Save the source first to see the webhook endpoint URL.",
   "color_strip.notification.app_count": "apps",
+  "color_strip.type.daylight": "Daylight Cycle",
+  "color_strip.type.daylight.desc": "Simulates natural daylight over 24 hours",
+  "color_strip.type.daylight.hint": "Simulates the sun's color temperature throughout a 24-hour day/night cycle — from warm sunrise to cool daylight to warm sunset and dim night.",
+  "color_strip.daylight.speed": "Speed:",
+  "color_strip.daylight.speed.hint": "Cycle speed multiplier. 1.0 = full day/night cycle in ~4 minutes. Higher values cycle faster.",
+  "color_strip.daylight.use_real_time": "Use Real Time:",
+  "color_strip.daylight.use_real_time.hint": "When enabled, LED color matches the actual time of day on this computer. Speed setting is ignored.",
+  "color_strip.daylight.real_time": "Real Time",
+  "color_strip.daylight.latitude": "Latitude:",
+  "color_strip.daylight.latitude.hint": "Your geographic latitude (-90 to 90). Affects sunrise/sunset timing in real-time mode.",
+  "color_strip.type.candlelight": "Candlelight",
+  "color_strip.type.candlelight.desc": "Realistic flickering candle simulation",
+  "color_strip.type.candlelight.hint": "Simulates realistic candle flickering across all LEDs with warm tones and organic flicker patterns.",
+  "color_strip.candlelight.color": "Base Color:",
+  "color_strip.candlelight.color.hint": "The warm base color of the candle flame. Default is a natural warm amber.",
+  "color_strip.candlelight.intensity": "Flicker Intensity:",
+  "color_strip.candlelight.intensity.hint": "How much the candles flicker. Low values produce a gentle glow, high values simulate a windy candle.",
+  "color_strip.candlelight.num_candles_label": "Number of Candles:",
+  "color_strip.candlelight.num_candles": "candles",
+  "color_strip.candlelight.num_candles.hint": "How many independent candle sources along the strip. Each flickers with its own pattern.",
+  "color_strip.candlelight.speed": "Flicker Speed:",
+  "color_strip.candlelight.speed.hint": "Speed of the flicker animation. Higher values produce faster, more restless flames.",
   "color_strip.composite.layers": "Layers:",
   "color_strip.composite.layers.hint": "Stack multiple color strip sources. First layer is the bottom, last is the top. Each layer can have its own blend mode and opacity.",
   "color_strip.composite.add_layer": "+ Add Layer",

server/src/wled_controller/static/locales/ru.json

@@ -913,6 +913,28 @@
   "color_strip.notification.endpoint.hint": "URL для запуска уведомлений из внешних систем. POST с JSON телом: {\"app\": \"AppName\", \"color\": \"#FF0000\"}.",
   "color_strip.notification.save_first": "Сначала сохраните источник, чтобы увидеть URL вебхука.",
   "color_strip.notification.app_count": "прилож.",
+  "color_strip.type.daylight": "Дневной цикл",
+  "color_strip.type.daylight.desc": "Имитация естественного дневного света за 24 часа",
+  "color_strip.type.daylight.hint": "Имитирует цветовую температуру солнца в течение суток — от тёплого рассвета до прохладного дневного света, заката и ночи.",
+  "color_strip.daylight.speed": "Скорость:",
+  "color_strip.daylight.speed.hint": "Множитель скорости цикла. 1.0 = полный цикл день/ночь за ~4 минуты.",
+  "color_strip.daylight.use_real_time": "Реальное время:",
+  "color_strip.daylight.use_real_time.hint": "Если включено, цвет LED соответствует реальному времени суток. Настройка скорости игнорируется.",
+  "color_strip.daylight.real_time": "Реальное время",
+  "color_strip.daylight.latitude": "Широта:",
+  "color_strip.daylight.latitude.hint": "Географическая широта (-90 до 90). Влияет на время восхода/заката в режиме реального времени.",
+  "color_strip.type.candlelight": "Свечи",
+  "color_strip.type.candlelight.desc": "Реалистичная имитация мерцания свечей",
+  "color_strip.type.candlelight.hint": "Реалистичное мерцание свечей с тёплыми тонами и органическими паттернами.",
+  "color_strip.candlelight.color": "Базовый цвет:",
+  "color_strip.candlelight.color.hint": "Тёплый базовый цвет пламени свечи. По умолчанию — натуральный тёплый янтарь.",
+  "color_strip.candlelight.intensity": "Интенсивность мерцания:",
+  "color_strip.candlelight.intensity.hint": "Сила мерцания свечей. Низкие значения — мягкое свечение, высокие — свеча на ветру.",
+  "color_strip.candlelight.num_candles_label": "Количество свечей:",
+  "color_strip.candlelight.num_candles": "свечей",
+  "color_strip.candlelight.num_candles.hint": "Сколько независимых источников свечей вдоль ленты. Каждый мерцает по-своему.",
+  "color_strip.candlelight.speed": "Скорость мерцания:",
+  "color_strip.candlelight.speed.hint": "Скорость анимации мерцания. Большие значения — более быстрое, беспокойное пламя.",
   "color_strip.composite.layers": "Слои:",
   "color_strip.composite.layers.hint": "Наложение нескольких источников. Первый слой — нижний, последний — верхний. Каждый слой может иметь свой режим смешивания и прозрачность.",
   "color_strip.composite.add_layer": "+ Добавить слой",

server/src/wled_controller/static/locales/zh.json

@@ -913,6 +913,28 @@
   "color_strip.notification.endpoint.hint": "使用此 URL 从外部系统触发通知。POST 请求可选 JSON：{\"app\": \"AppName\", \"color\": \"#FF0000\"}。",
   "color_strip.notification.save_first": "请先保存源以查看 Webhook 端点 URL。",
   "color_strip.notification.app_count": "个应用",
+  "color_strip.type.daylight": "日光循环",
+  "color_strip.type.daylight.desc": "模拟24小时自然日光变化",
+  "color_strip.type.daylight.hint": "模拟太阳在24小时内的色温变化——从温暖的日出到冷白的日光，再到温暖的日落和昏暗的夜晚。",
+  "color_strip.daylight.speed": "速度：",
+  "color_strip.daylight.speed.hint": "循环速度倍数。1.0 = 约4分钟完成一个完整的昼夜循环。",
+  "color_strip.daylight.use_real_time": "使用实时时间：",
+  "color_strip.daylight.use_real_time.hint": "启用后，LED颜色匹配计算机的实际时间。速度设置将被忽略。",
+  "color_strip.daylight.real_time": "实时",
+  "color_strip.daylight.latitude": "纬度：",
+  "color_strip.daylight.latitude.hint": "地理纬度（-90到90）。影响实时模式下的日出/日落时间。",
+  "color_strip.type.candlelight": "烛光",
+  "color_strip.type.candlelight.desc": "逼真的烛光闪烁模拟",
+  "color_strip.type.candlelight.hint": "在所有LED上模拟逼真的蜡烛闪烁，具有温暖色调和有机闪烁模式。",
+  "color_strip.candlelight.color": "基础颜色：",
+  "color_strip.candlelight.color.hint": "蜡烛火焰的温暖基础颜色。默认为自然温暖的琥珀色。",
+  "color_strip.candlelight.intensity": "闪烁强度：",
+  "color_strip.candlelight.intensity.hint": "蜡烛闪烁程度。低值产生柔和光芒，高值模拟风中的蜡烛。",
+  "color_strip.candlelight.num_candles_label": "蜡烛数量：",
+  "color_strip.candlelight.num_candles": "支蜡烛",
+  "color_strip.candlelight.num_candles.hint": "灯带上独立蜡烛光源的数量。每支蜡烛有自己的闪烁模式。",
+  "color_strip.candlelight.speed": "闪烁速度：",
+  "color_strip.candlelight.speed.hint": "闪烁动画的速度。较高的值产生更快、更不安定的火焰。",
   "color_strip.composite.layers": "图层：",
   "color_strip.composite.layers.hint": "叠加多个色带源。第一个图层在底部，最后一个在顶部。每个图层可以有自己的混合模式和不透明度。",
   "color_strip.composite.add_layer": "+ 添加图层",