Both CRDT libs are now consumed (crdt_sync_dart: diet_guard app, workout_app,
phone_app, todo; crdt-sync: diet-guard, screen-locker). Reconcile the
sub-package READMEs' old standalone git URLs to the monorepo-subdirectory
form, and bump the crdt_sync examples to v0.2.0.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019KwUCPESvE5CjCtmUFz8xQ
Extracted from wake_alarm, screen-locker, and diet_guard, which each
independently implemented fullscreen-lock, input-grab, VT-disable, and
HMAC-signed-state mechanics at different levels of maturity (the HMAC
module was already a hand-copied duplicate between two of them).
LockConfig exposes overrideredirect/grab/disable_vt as independent
axes so one LockWindow can reproduce all three projects' exact prior
behavior, plus screen-locker's confirmed upgrade to retry-forever grab.
