Replace the static hero screenshot with a self-contained React mockup of the
full Gridline DB viewer (sidebar, table tree, tab bar, fake SQL editor,
data grid, queries/objects/schema-visualizer views, disabled Tools state).
- Add @astrojs/react and mount the island via client:visible
- 16:9 aspect-ratio mockup, hidden on mobile (static image fallback)
- JSON cell popover: solid surface, anchored within the mockup window,
Escape/outside-click close
- Dependency-free HTML5 drag-to-reorder tabs
- Theme-aware app tokens (canvas, surface-raised, popover bg)
- Site-wide max-w-7xl (was max-w-[1200px]) so sections center on big screens
- Regenerate standalone www/bun.lock for deterministic Dokploy builds
www/package.json declares vitest ^4.1.10 but the standalone www/bun.lock
(Railpack/Dokploy builds from /www with --frozen-lockfile) was stale and
missing it, failing every deployment with 'lockfile had changes, but
lockfile is frozen'. Regenerated www/bun.lock from www/package.json.