Revert to v1.5.1

Update index.html to v1.5.2

ClawMemory v1.5.2 - Stats/Privacy views, emotion category, safe DOM switching

Revert to v1.5.1 - restore app.html and index.html

Debug: add marker in CSS

Debug: use alert instead of console.log

Debug: add console log to filterByCategory

ClawMemory v1.5.2 - Stats view, privacy scanner, category counts, UX improvements

Remove date picker - simplify for compatibility

Fix date picker - use text input with fallback

Fix date input compatibility

ClawMemory v1.5.1 - clean rebuild with working sidebar

Fix sidebar button Chinese encoding

Update index.html version to v1.5.1

v1.5.1 - Disable export when no memories