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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diff --git a/gradle.properties b/gradle.properties
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--- /dev/null
+++ b/gradle.properties
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+# Sized for small machines (this is developed on a 4 GB laptop): one modest Gradle heap,
+# Kotlin compiled inside it rather than in a second daemon, and only two workers at a time.
+org.gradle.jvmargs=-Xmx1280m -XX:MaxMetaspaceSize=384m -XX:+UseSerialGC -Dfile.encoding=UTF-8
+kotlin.compiler.execution.strategy=in-process
+org.gradle.workers.max=2
+org.gradle.caching=true
+org.gradle.configuration-cache=true
+kotlin.code.style=official