docs(tasks): add footer language persistence task for next session

SUMMARY:
Added new task for implementing language-persistent footer component
and translating privacy.html into English, German, and French.

CHANGES:

1. Added Task 7: Footer Language Persistence & Privacy Page Translations
   - Status: Not started (scheduled for next session)
   - Effort: Medium (2-3 hours)

2. Requirements documented:
   - Footer component with language detection and localStorage persistence
   - Privacy page translations (en/de/fr)
   - Navbar language persistence integration
   - Language selector icons in footer and navbar

3. Files to create/modify identified:
   - public/js/components/footer.js (enhance)
   - public/locales/[de,fr,en]/privacy.json (new)
   - public/privacy.html (add i18n)
   - public/js/components/navbar.js (add persistence)

BENEFITS:
- Better UX for international users
- Legal compliance (privacy in native languages)
- Consistent language experience across site
- Improved accessibility

🤖 Generated with Claude Code (https://claude.com/claude-code)

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

SCHEDULED_TASKS.md

@@ -176,6 +176,52 @@ async function migrate() {
 
 ---
 
+### 7. Footer Language Persistence & Privacy Page Translations
+**Scheduled:** Next available session
+**Effort:** Medium (2-3 hours)
+**Status:** Not started
+
+**Description:**
+Implement language-persistent footer component and translate privacy.html into English, German, and French.
+
+**Requirements:**
+
+1. **Footer Component Language Persistence:**
+   - Create footer.js component with language detection
+   - Store user's language preference in localStorage
+   - Automatically display footer in user's selected language
+   - Support English, German (de), French (fr)
+   - Include language selector icons in footer
+
+2. **Privacy Page Translations:**
+   - Translate privacy.html content into German
+   - Translate privacy.html content into French
+   - Create /privacy.html?lang=de route
+   - Create /privacy.html?lang=fr route
+   - Use i18n-simple.js for translation management
+   - Maintain WCAG 2.1 AA compliance in all languages
+
+3. **Navbar Language Persistence:**
+   - Update navbar.js to persist language selection
+   - Sync with footer language preference
+   - Show current language with flag icons
+
+**Files to Create/Modify:**
+- `public/js/components/footer.js` (enhance with i18n)
+- `public/locales/de/privacy.json` (new)
+- `public/locales/fr/privacy.json` (new)
+- `public/locales/en/privacy.json` (new)
+- `public/privacy.html` (add i18n support)
+- `public/js/components/navbar.js` (add persistence)
+
+**Benefits:**
+- Better UX for international users
+- Legal compliance (privacy in native languages)
+- Consistent language experience across site
+- Improved accessibility
+
+---
+
 ## 🔍 Low Priority
 
 ### 4. Workflow Status UI Indicators