FUSIONFALL.ORG SOCIAL APP NAVIGATION PATCH - 2026-08-23

Upload
- Extract the ZIP into public_html/directleaks/ so its webapp folder merges
  into public_html/directleaks/webapp/.
- Allow overwrite for the four existing files. The new navigation texture is
  added under webapp/assets/.
- Open https://fusionfall.org/directleaks/webapp/?install=1 and reload once.

Changes
- Adds Home, FusionFall Forum, Minecraft Downloads, Support Discord, and
  Upgrade Account in the gap between the command bar and active app screen.
- Matches the live FusionFall.org flat navigation strip with the original
  bg_mainnav_pat.jpg artwork from E:\fusionfallsite.
- Replaces purple UI remnants with the site's cyan, blue, and green palette.
- Refines command bar, panels, buttons, scrollbars, and dock geometry.
- Adds a dedicated mobile navigation row with horizontal touch scrolling.
- Bumps the service-worker shell cache from v23 to v24.

Verification
- Desktop layout rendered without collisions or clipping.
- 390 x 844 phone layout rendered without page-level horizontal overflow.
- All five destinations and the accessible navigation landmark are present.
- The pre-existing local relay/API error is expected outside the live PHP host.
