Three items the multi-agent sweep flagged, now removed with user
approval (§8 for the solitaire_sync changes):
- WinCascadePlugin: never registered; handle_win_cascade in
AnimationPlugin is the live win cascade and builds its own targets.
Its now-orphaned helpers (win_scatter_targets, cascade_delay,
WIN_CASCADE_INTERVAL_SECS) had no callers outside their own tests
and go with it.
- SyncCompleteEvent: written by the pull-completion system, zero
readers — UI reads SyncStatusResource instead.
- solitaire_sync::ApiError: unused by client and server; the merge_at
crate-root re-export goes too (merge::merge_at stays for the merge
module's own use).
ARCHITECTURE.md updated to match.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
funman300