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>

doc/developer_mode_screen.md

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+Developer mode
+
+This mode is designed for experienced developers to make local software changes via SH access to the system.
+
+Please note that any changes to software puts the device security at increased risk.
+
+- Access to root shell is offered in compliance with GPL V3 license.
+- Running custom or modified software may cause the device to stop working or adversely affect performance.
+- A factory reset is required to enter.
+- This will delete all files stored on your paper tablet.
+- User data will be cleared once the device is rebooted.
+- The device will no longer verify the authenticity of the software, putting your system stability and data security at risk.
+- Access any content stored in the cloud by re-pairing with your reMarkable account.
+
+For instructions on how to exit developer mode, visit support.remarkable.com
+
+    (Accept)