Checkpoint requested before the targets read-tool correction. Includes canonical initial posts, creator/edit metadata, migration and UI work, and removal of delivery diagnostics from Ticket details.\n\nIntegration remains incomplete: the Client post-edit trait implementation and server post routes/dispatch are not yet connected; cargo check currently fails. This commit does not assert validation or delivery completion.
Use content digests, key fingerprints, binding and trust identities, immutable mutation receipts, and observation tokens instead of state-update ordinals across API, storage, Runtime, and Web contracts.
Preserve historical replay and secret material through frozen migrations; preflight uncertain removals before cutover, resume provisioning receipts, validate encrypted migration candidates, and align fresh/upgraded schemas. Include reviewed regression fixes, generated artifacts, and validation evidence.