Add visual selectors to automation and KC target editors

Automation editor:
- IconSelect grid for condition logic (OR/AND) with descriptions

KC target editor:
- IconSelect for color mode (average/median/dominant) with SVG previews
- EntitySelect palette for picture source, pattern template, brightness source

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

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

@@ -524,6 +524,9 @@
   "kc.interpolation.average": "平均",
   "kc.interpolation.median": "中位数",
   "kc.interpolation.dominant": "主色",
+  "kc.interpolation.average.desc": "所有像素颜色的平均值",
+  "kc.interpolation.median.desc": "每通道中间颜色值",
+  "kc.interpolation.dominant.desc": "出现最频繁的颜色",
   "kc.smoothing": "平滑：",
   "kc.smoothing.hint": "提取间的时间混合（0=无，1=完全）",
   "kc.pattern_template": "图案模板：",
@@ -614,6 +617,8 @@
   "automations.condition_logic.hint": "多个条件的组合方式：任一（或）或 全部（与）",
   "automations.condition_logic.or": "任一条件（或）",
   "automations.condition_logic.and": "全部条件（与）",
+  "automations.condition_logic.or.desc": "任一条件匹配时触发",
+  "automations.condition_logic.and.desc": "全部匹配时才触发",
   "automations.conditions": "条件：",
   "automations.conditions.hint": "决定此自动化何时激活的规则",
   "automations.conditions.add": "添加条件",