Sweatbox Builder v7.11.1

• Fixed: scenarios that would not open. Everything the app saves lives in
  the webview's local storage, which has a hard limit of about 5 MB. When it
  filled up, the app carried on as if it had saved: a scenario created at
  that point was listed in the rail but never written, and clicking it later
  did nothing at all — the "frozen" scenario. REWIND history was the usual
  culprit: ten full copies of the traffic board per scenario add up fast.
  • A refused save now opens a STORAGE FULL dialog that shows what takes
    the space (scenarios, REWIND history, navdata, pool) and offers
    FREE SPACE — hold to confirm — which drops every scenario's REWIND
    history, the one thing that is always safe to lose, and saves again. A
    webview that refuses to store anything at all gets its own message
    instead, since freeing space would not help there.
  • A new scenario, a clone, an import or a rename is only added to the rail
    once it is actually saved; a refused rename or slot switch leaves the
    scenario exactly where it was and says so.
  • Slots that already are ghosts show NO SAVED DATA on the rail; click
    one and it opens empty with a note (there was nothing to lose). A slot
    whose data is unreadable shows UNREADABLE and says so when clicked;
    ⋯ → DELETE removes it.
  • Each scenario's REWIND history is now capped by size as well as depth.
• If the display ever stops on an error, a recovery screen now offers a
  rescue copy — every saved scenario, the pool and the navdata as one
  file, never your GitHub token — and a reload, instead of a blank window.

Full Changelog: v7.11.0...v7.11.1