v1.1.0

Installer SHA-256: 3CE485553866CA8AC5B9D160CC28993FE8FB489AF21743BFBCE545666972FC56

Added

• Arrow-key nudging. With a sticker focused, the arrow keys move it 1 pixel
  at a time (hold Shift for ~10) — fine positioning the mouse can't do.
• Per-sticker unpin. The tray now has an "Unpin sticker" submenu listing
  each pinned sticker by name, so you can release just one. (A pinned sticker is
  click-through and can't reopen its own menu, so previously the only way back
  was the all-or-nothing "Unpin all stickers".)
• Right-clicking a sticker now focuses it, so the keyboard shortcuts keep
  working after you've clicked away to another window.
• The right-click menu shows a scroll-gesture legend (resize · opacity ·
  fine resize), which previously had no on-screen hint.
• The + / - resize keys now honor Ctrl for fine steps (5% instead of
  15%), matching Ctrl + scroll-wheel resize and what the README already
  documented.

Fixed

• A failed matte on the open/restore path no longer poisons the rest of the
  batch. If a model ran out of GPU memory while opening (or restoring)
  several images at once, its half-loaded session used to stay resident and
  every following sticker in that batch failed too. The session is now evicted
  on failure — matching the re-matte path — so the next attempt starts clean.
• A sticker could "stick" to the cursor after the mouse capture was lost
  mid-drag — e.g. Alt+Tab, or pressing S (save) while dragging. Drag state is
  now reset when capture is lost, so the next mouse move no longer teleports it.
• The "downloading model" notice no longer flashes shut during --resume
  when a cached cutout is restored before a model still needs downloading; it
  now stays up across the actual download instead of closing on the first
  cache hit.
• Picking a second matting model while one is still running is now ignored,
  so the on-sticker busy spinner can't clear while inference is still going.
• --resume no longer forgets a sticker's model when its cached cutout is
  missing. Previously the restore fell back to the default model and wrote that
  default back to session.json, permanently losing the original choice; the
  intended model is now preserved, so a later restore reuses it once the cutout
  is cached again.
• Closing a sticker mid-drag (Esc, middle-click) no longer races the drag
  handler into a spurious "Something went wrong" notification.
• Clipboard captures can't collide. Pasted images now get a unique suffix, so
  two pastes in the same millisecond can't overwrite each other (which would have
  orphaned an open sticker's cached cutout).
• The single-instance handoff read is now time-bounded, so a stray client that
  connects without sending data can't pin the listener and block "Open as sticker".

Internal

• Added a test suite and CI. A small xUnit project covers the contract-critical
  pure logic (matte cache-key derivation, tolerant session parsing, the bilinear
  resize mapping, and the model registry), and a CI workflow now builds both
  projects, runs the tests, and guards against version drift (csproj/installer/
  manifest) and image-extension-list drift on every push and PR.

Full Changelog: v1.0.4...v1.1.0