e41c3e7dc4
- Browse dashboard at / with search, framework filter, tag pills, and pagination - Tags system with autocomplete datalist and per-fiddle tag management - Listed/unlisted toggle for visibility control (unlisted still accessible via direct URL) - Export standalone HTML with inlined CSS/JS and framework CDN tags - QR code modal for sharing fiddle URLs - Embed mode at /embed/:id for minimal preview-only rendering - Extract shared loadScript() utility from 4 files into utils.js - Database schema: listed column, tags and fiddle_tags tables with index