v0.6.6 release - UI cleanup for tiled page

[0.6.6] — 2026-05-17

Two changes to the Tiled tile face: the v0.6.5 widget modal is
replaced by a mode of the existing drawer, and exposure layer text pills
are replaced with recognizable brand logos.

Added

• Brand logo exposure icons. The text-pill badges that showed a
  truncated layer name are replaced with 18 px brand SVG logos. Each
  icon carries a padlock overlay when TLS is active and a pencil overlay
  when an explicit hostname was configured. Logos for Traefik, Cloudflare,
  DockFlare, nginx, and Caddy are sourced from official brand channels and
  committed to static/icons/exposure/; unknown layers fall back to a
  ti-route icon.

Changed

• Widget drawer replaces widget modal. The chart icon on a tile now
  opens the tile's existing drawer in widget-only mode — showing just the
  metric cards — rather than a separate centered overlay. Clicking the
  icon again closes the drawer; clicking the chevron while in widget mode
  expands to the full drawer in-place (and vice versa). Esc and
  click-outside still dismiss. The "Refresh paused" detection requires no
  change: the widget view is just an open drawer.

Removed

• Widget data modal (centered overlay with backdrop, introduced in
  v0.6.5). Superseded by widget drawer mode.
• Old exposure text-pill CSS (.exposure-badge classes). Replaced by
  .exposure-icons / .exposure-icon-* classes.