* fix(workboard): recover interrupted worker launches
Persist prepared, accepted, and failed launch phases so Gateway restart reconciliation cannot leave cards permanently running between launch preparation and worker acceptance.
* fix(workboard): require durable terminal evidence
Do not synthesize terminal-session acceptance timing during restart reconciliation; stale same-key terminal rows without updatedAt now fail the prepared launch instead of being adopted.
* fix(workboard): make ownership updates atomic
Persist launch intent before worker acceptance, reconcile accepted identities,
fence cross-host card mutations, and deduplicate session capture in SQLite.
Closes#125932
* test(workboard): keep race fixtures plugin-local
Use a plugin-local synchronization helper and update the sessions-page capture
expectation for the new store-owned RPC.
* fix(workboard): fence lifecycle and restore races
Apply terminal lifecycle state only while the matched association is current,
and converge concurrent archived session restores on the active winner.
Peter Steinberger