Rookery: penguin-themed cubing toolkit, phases 0-1 and GAN BLE

Kotlin Multiplatform + Compose desktop app.

- Sync: per-device append-only op logs (HLC-stamped LWW) in a plain
  folder, safe under Syncthing/Drive; content-addressed image blobs.
- Timer: WCA inspection, +2/DNF, solve table, WCA-correct aoN/moN,
  per-event lifetime PBs with a pixel-penguin party and synthesized
  8-bit chime. Mascot sprite from liz.coffee.
- Scrambles for all WCA events + FTO via tnoodle-lib, with previews.
- Importers: csTimer exports (incl. smart-cube reconstructions and
  cube MACs) and the Letter Pair Gym prototype (words, notes, images,
  history, practice stats). Idempotent; headless `--import`.
- Letter-pair grid with miss heatmap, glance lookup and editor.
- 3D puzzle engine (polyhedron + cut planes) and Canvas renderer:
  NxN 2-7, Pyraminx, Skewb, verified sticker-for-sticker against
  tnoodle; 3D replay of smart-cube solves.
- GAN Gen2/3/4 smart-cube protocol (ported from gan-web-bluetooth,
  MIT) with a BlueZ D-Bus transport and `--cube scan|monitor` CLI.
  Not yet tested against hardware.
- lizCI pipeline (.ci) building a test+package Docker target.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

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+MIT License
+
+Copyright (c) 2026 the rookery authors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.