Initial commit: Chatter — assistive-writing app for reMarkable Paper Pro Move

Direct-framebuffer ink pipeline (stock-quality strokes), finger-wipe erase,
growable scrolling canvas with color-ghost cleanup, bidirectional toggle with a
persistent 4-finger return launcher, instant button feedback. Includes prebuilt
aarch64 binaries (dist/), build/deploy/install scripts, a user guide, and a
complete technical reference.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,19 @@
+# Build output
+/build/
+build*/
+
+# Secrets — device credentials & cloud tokens must never be committed
+doc/tablet_access.md
+*.token
+
+# Editor/OS cruft
+*~
+.DS_Store
+
+# Local Claude Code data
+.claude/
+
+# Compiled tool binaries (built by build.sh / manually)
+/tools/chatter-launcher
+/tools/grabtest
+/tools/*.so