Bump to 1.1.0

User-facing 1.0.0 → 1.1.0 highlights, in operator-relevant order:

* Screenshot lightbox on /apps/[package] replaces "open in new tab"
* Progressive multi-file screenshot upload on the editor page
* Download-origin chips on /history (F-Droid / web / CLI / other)
* /admin/repo keystore read 3-10× faster (PKCS#12 in-process via
  cryptography, no more keytool JVM cold-start)
* Visual polish pass across the SPA — stat-digit slashed-zero fix,
  curated category palette, screenshots fade indicator + counter,
  scan-now disabled-reason, draft-watermark localisation

README's "Changelog" section now opens with a 1.1.0 block above the
existing 1.0.0 → 1.0.9 notes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>