- Added session-domain modules and exports for session-entries, context, listing, loader, and migrations.
- Changed persistence to async append writes plus writeTextAtomic, removing sync line APIs.
- Added compaction-aware session context rebuild with dangling tool-call cleanup.
- Added resumable session resolution with status inference, id/stem/suffix matching, and backup recovery.
- Replaced queued-message interrupt flow with session abort calls on empty submit and escape.
- Removed interrupting state and notifyInterrupting teardown paths from abort handling.
- Updated AgentSession queue operations to use shared steering and follow-up queue views.
- Propagated isAborting through session state and collab payloads to suppress late updates.
- Updated conflict URI parsing to accept `path:conflict://N` and record the removed prefix in `recoveredPrefix`.
- Updated write conflict handling to resolve single or wildcard IDs through shared helpers and append a recovery note when a malformed prefix was stripped.
- Added regression tests for recovered prefixes and end-to-end write-path recovery and documented the change in the changelog.
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