Add clone support for all entity types

Clone button on every card opens the editor in create mode pre-filled
with copied data and a "(Copy)" name suffix. Cancelling discards the
clone — entity is only persisted on Save.

Supported: LED targets, color strip sources, KC targets, pattern
templates, picture sources, capture templates, PP templates.

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

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

@@ -53,12 +53,14 @@ import {
     showAddPPTemplateModal, editPPTemplate, closePPTemplateModal, savePPTemplate, deletePPTemplate,
     addFilterFromSelect, toggleFilterExpand, removeFilter, moveFilter, updateFilterOption,
     renderModalFilterList, updateCaptureDuration,
+    cloneStream, cloneCaptureTemplate, clonePPTemplate,
 } from './features/streams.js';
 import {
     createKCTargetCard, testKCTarget, toggleKCTestAutoRefresh,
     showKCEditor, closeKCEditorModal, forceCloseKCEditorModal, saveKCEditor,
     deleteKCTarget, disconnectAllKCWebSockets,
     updateKCBrightnessLabel, saveKCBrightness,
+    cloneKCTarget,
 } from './features/kc-targets.js';
 import {
     createPatternTemplateCard,
@@ -67,6 +69,7 @@ import {
     renderPatternRectList, selectPatternRect, updatePatternRect,
     addPatternRect, deleteSelectedPatternRect, removePatternRect,
     capturePatternBackground,
+    clonePatternTemplate,
 } from './features/pattern-templates.js';
 import {
     loadProfiles, openProfileEditor, closeProfileEditorModal,
@@ -85,6 +88,7 @@ import {
     addTargetSegment, removeTargetSegment,
     startTargetProcessing, stopTargetProcessing,
     startTargetOverlay, stopTargetOverlay, deleteTarget,
+    cloneTarget,
 } from './features/targets.js';
 
 // Layer 5: color-strip sources
@@ -95,6 +99,7 @@ import {
     compositeAddLayer, compositeRemoveLayer,
     onAudioVizChange,
     applyGradientPreset,
+    cloneColorStrip,
 } from './features/color-strips.js';
 
 // Layer 5: calibration
@@ -210,6 +215,9 @@ Object.assign(window, {
     moveFilter,
     updateFilterOption,
     renderModalFilterList,
+    cloneStream,
+    cloneCaptureTemplate,
+    clonePPTemplate,
 
     // kc-targets
     createKCTargetCard,
@@ -223,6 +231,7 @@ Object.assign(window, {
     disconnectAllKCWebSockets,
     updateKCBrightnessLabel,
     saveKCBrightness,
+    cloneKCTarget,
 
     // pattern-templates
     createPatternTemplateCard,
@@ -238,6 +247,7 @@ Object.assign(window, {
     deleteSelectedPatternRect,
     removePatternRect,
     capturePatternBackground,
+    clonePatternTemplate,
 
     // profiles
     loadProfiles,
@@ -273,6 +283,7 @@ Object.assign(window, {
     startTargetOverlay,
     stopTargetOverlay,
     deleteTarget,
+    cloneTarget,
 
     // color-strip sources
     showCSSEditor,
@@ -290,6 +301,7 @@ Object.assign(window, {
     compositeRemoveLayer,
     onAudioVizChange,
     applyGradientPreset,
+    cloneColorStrip,
 
     // calibration
     showCalibration,