Add EntitySelect/IconSelect UI improvements across modals

- Portal IconSelect popups to document.body with position:fixed to prevent
  clipping by modal overflow-y:auto
- Replace custom scene selectors in automation editor with EntitySelect
  command-palette pickers (main scene + fallback scene)
- Add IconSelect grid for automation deactivation mode (none/revert/fallback)
- Add IconSelect grid for automation condition type and match type
- Replace mapped zone source dropdowns with EntitySelect pickers
- Replace scene target selector with EntityPalette.pick() pattern
- Remove effect palette preview bar from CSS editor
- Remove sensitivity badge from audio color strip source cards
- Clean up unused scene-selector CSS and scene-target-add-row CSS
- Add locale keys for all new UI elements across en/ru/zh

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

server/src/wled_controller/static/js/app.js

@@ -108,7 +108,7 @@ import {
 // Layer 5: color-strip sources
 import {
     showCSSEditor, closeCSSEditorModal, forceCSSEditorClose, saveCSSEditor, deleteColorStrip,
-    onCSSTypeChange, onEffectTypeChange, onAnimationTypeChange, onCSSClockChange, updateEffectPreview,
+    onCSSTypeChange, onEffectTypeChange, onAnimationTypeChange, onCSSClockChange,
     colorCycleAddColor, colorCycleRemoveColor,
     compositeAddLayer, compositeRemoveLayer,
     mappedAddZone, mappedRemoveZone,
@@ -142,6 +142,11 @@ import {
     setStartPosition, toggleEdgeInputs, toggleDirection, toggleTestEdge,
     showCSSCalibration, toggleCalibrationOverlay,
 } from './features/calibration.js';
+import {
+    showAdvancedCalibration, closeAdvancedCalibration, saveAdvancedCalibration,
+    addCalibrationLine, removeCalibrationLine, selectCalibrationLine, moveCalibrationLine,
+    updateCalibrationLine, resetCalibrationView,
+} from './features/advanced-calibration.js';
 
 // Layer 6: tabs, navigation, command palette, settings
 import { switchTab, initTabs, startAutoRefresh, handlePopState } from './features/tabs.js';
@@ -371,7 +376,6 @@ Object.assign(window, {
     onEffectTypeChange,
     onCSSClockChange,
     onAnimationTypeChange,
-    updateEffectPreview,
     colorCycleAddColor,
     colorCycleRemoveColor,
     compositeAddLayer,
@@ -421,6 +425,17 @@ Object.assign(window, {
     showCSSCalibration,
     toggleCalibrationOverlay,
 
+    // advanced calibration
+    showAdvancedCalibration,
+    closeAdvancedCalibration,
+    saveAdvancedCalibration,
+    addCalibrationLine,
+    removeCalibrationLine,
+    selectCalibrationLine,
+    moveCalibrationLine,
+    updateCalibrationLine,
+    resetCalibrationView,
+
     // tabs / navigation / command palette
     switchTab,
     startAutoRefresh,