Add per-tab tutorials, profile expand/collapse, and fix card animation

- Add sub-tutorials for Dashboard, Targets, Sources, and Profiles tabs
  with ? trigger buttons, en/ru/zh translations, and hidden-ancestor
  skip via offsetParent check
- Add expand/collapse all buttons to Profiles tab toolbar
- Move dashboard poll slider from section header to toolbar
- Fix cardEnter animation forcing opacity:1 on disabled profile cards
- Use data-card-section selectors instead of data-cs-toggle to avoid
  z-index misalignment during tutorial spotlight
- Add tutorial sync convention to CLAUDE.md

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

server/src/wled_controller/static/js/features/profiles.js

@@ -76,11 +76,20 @@ export async function loadProfiles() {
     }
 }
 
+export function expandAllProfileSections() {
+    CardSection.expandAll([csProfiles]);
+}
+
+export function collapseAllProfileSections() {
+    CardSection.collapseAll([csProfiles]);
+}
+
 function renderProfiles(profiles, runningTargetIds = new Set()) {
     const container = document.getElementById('profiles-content');
 
     const items = csProfiles.applySortOrder(profiles.map(p => ({ key: p.id, html: createProfileCard(p, runningTargetIds) })));
-    container.innerHTML = csProfiles.render(items);
+    const toolbar = `<div class="stream-tab-bar"><span class="cs-expand-collapse-group"><button class="btn-expand-collapse" onclick="expandAllProfileSections()" title="${t('section.expand_all')}">⊞</button><button class="btn-expand-collapse" onclick="collapseAllProfileSections()" title="${t('section.collapse_all')}">⊟</button><button class="tutorial-trigger-btn" onclick="startProfilesTutorial()" title="${t('tour.restart')}">?</button></span></div>`;
+    container.innerHTML = toolbar + csProfiles.render(items);
     csProfiles.bind();
 
     // Localize data-i18n elements within the profiles container only