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/calibration.js

@@ -6,6 +6,7 @@ import {
     calibrationTestState, EDGE_TEST_COLORS, displaysCache,
 } from '../core/state.js';
 import { API_BASE, getHeaders, fetchWithAuth } from '../core/api.js';
+import { colorStripSourcesCache, devicesCache } from '../core/state.js';
 import { t } from '../core/i18n.js';
 import { showToast } from '../core/ui.js';
 import { Modal } from '../core/modal.js';
@@ -231,13 +232,12 @@ export async function closeCalibrationModal() {
 
 export async function showCSSCalibration(cssId) {
     try {
-        const [cssResp, devicesResp] = await Promise.all([
-            fetchWithAuth(`/color-strip-sources/${cssId}`),
-            fetchWithAuth('/devices'),
+        const [cssSources, devices] = await Promise.all([
+            colorStripSourcesCache.fetch(),
+            devicesCache.fetch().catch(() => []),
         ]);
-
-        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 || {
         }
 
@@ -246,7 +246,6 @@ export async function showCSSCalibration(cssId) {
         document.getElementById('calibration-css-id').value = cssId;
 
         // Populate device picker for edge test
-        const devices = devicesResp.ok ? ((await devicesResp.json()).devices || []) : [];
         const testDeviceSelect = document.getElementById('calibration-test-device');
         testDeviceSelect.innerHTML = '';
         devices.forEach(d => {
@@ -940,6 +939,7 @@ export async function saveCalibration() {
         }
         if (response.ok) {
             showToast(t('calibration.saved'), 'success');
+            if (cssMode) colorStripSourcesCache.invalidate();
             calibModal.forceClose();
             if (cssMode) {
                 if (window.loadTargetsTab) window.loadTargetsTab();