Canvas Notebook 2026.10.3.2

Fixed

• Recover verified initialized collaboration documents at sequence zero through the normal checkpoint pipeline, while preserving document bytes, history and shares.
• Verify completed recovery journals on a fresh CLI resume without writing the file or database rows again.

Verification

• Complete npm run verify:release passed.
• Recovery plan and native PostgreSQL/CLI regression checks passed, including changed-state rejection and idempotent resume.
• Both architecture builds, native compliance payloads, five archive checksums, signed update manifest and immutable source/image provenance verified.

Recovery of existing production documents requires a verified backup and restore, stopped writers and matching current evidence before applying a bounded plan.