pingqiuandClaude Opus 4.6 bb24b4b039 fix: encapsulate engine sender/session authority state ...

All mutable state on Sender and Session is now unexported:
- Sender.state, .epoch, .endpoint, .session, .stopped → accessors
- Session.id, .phase, .kind, etc. → read-only accessors
- Session() replaced by SessionSnapshot() (returns disconnected copy)
- SessionID() and HasActiveSession() for common queries
- AttachSession returns (sessionID, error) not (*Session, error)
- SupersedeSession returns sessionID not *Session

Budget configuration via SessionOption:
- WithBudget(CatchUpBudget) passed to AttachSession
- No direct field mutation on session from external code

New test: Encapsulation_SnapshotIsReadOnly proves snapshot
mutation does not leak back to sender state.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-03-29 20:58:28 -07:00

..

replication

fix: encapsulate engine sender/session authority state

2026-03-29 20:58:28 -07:00