Mario Zechner 3d35e7c469 Fix branch selector for single message and --no-session mode ...

- Allow branch selector to open with single user message (changed <= 1 to === 0 check)
- Support in-memory branching for --no-session mode (no files created)
- Add isEnabled() getter to SessionManager
- Update sessionFile getter to return null when sessions disabled
- Update SessionSwitchEvent types to allow null session files
- Add branching tests for single message and --no-session scenarios

fixes #163

2025-12-10 22:41:32 +01:00

4.7 KiB

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