Simplify pass on top of #2069 fix:
- Export FALLBACK_POLL_MS from canvas/src/store/socket.ts and import
it as TOMBSTONE_TTL_MS in deleteTombstones.ts. Single source of
truth — tuning one without the other would silently re-open the
hydrate-races-delete window. Required-fix per simplify reviewer.
- Compress deleteTombstones.ts docstring from 30 lines to 10 — keep
the "what + why module-level"; drop the long-form problem
description (issue #2069 carries it).
- Compress canvas.ts call-site comments at removeSubtree (4 lines →
2) and hydrate (2 lines → 2 but tighter).
- Don't reassign the workspaces parameter inside hydrate — use a
const `live` and thread it through the two downstream calls
(computeAutoLayout, buildNodesAndEdges). Same effect, no lint
smell.
- Trim the canvas.test.ts integration-test preamble.
No behaviour change.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
8c69a98da2