Add tags to all entity types with chip-based input and autocomplete

- Add `tags: List[str]` field to all 13 entity types (devices, output targets,
  CSS sources, picture sources, audio sources, value sources, sync clocks,
  automations, scene presets, capture/audio/PP/pattern templates)
- Update all stores, schemas, and route handlers for tag CRUD
- Add GET /api/v1/tags endpoint aggregating unique tags across all stores
- Create TagInput component with chip display, autocomplete dropdown,
  keyboard navigation, and API-backed suggestions
- Display tag chips on all entity cards (searchable via existing text filter)
- Add tag input to all 14 editor modals with dirty check support
- Add CSS styles and i18n keys (en/ru/zh) for tag UI
- Also includes code review fixes: thread safety, perf, store dedup

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

server/src/wled_controller/static/js/features/advanced-calibration.js

@@ -6,6 +6,7 @@
  */
 
 import { API_BASE, fetchWithAuth } from '../core/api.js';
+import { colorStripSourcesCache } from '../core/state.js';
 import { t } from '../core/i18n.js';
 import { showToast } from '../core/ui.js';
 import { Modal } from '../core/modal.js';
@@ -77,13 +78,12 @@ const _modal = new AdvancedCalibrationModal();
 
 export async function showAdvancedCalibration(cssId) {
     try {
-        const [cssResp, psResp] = await Promise.all([
-            fetchWithAuth(`/color-strip-sources/${cssId}`),
+        const [cssSources, psResp] = await Promise.all([
+            colorStripSourcesCache.fetch(),
             fetchWithAuth('/picture-sources'),
         ]);
-        if (!cssResp.ok) { showToast(t('calibration.error.css_load_failed'), 'error'); return; }
-
-        const source = await cssResp.json();
+        const source = cssSources.find(s => s.id === cssId);
+        if (!source) { showToast(t('calibration.error.css_load_failed'), 'error'); return; }
         const calibration = source.calibration || {};
         const psList = psResp.ok ? ((await psResp.json()).streams || []) : [];
 
@@ -168,6 +168,7 @@ export async function saveAdvancedCalibration() {
 
         if (resp.ok) {
             showToast(t('calibration.saved'), 'success');
+            colorStripSourcesCache.invalidate();
             _modal.forceClose();
         } else {
             const err = await resp.json().catch(() => ({}));