Conflicts: ledger-cli main.rs (kept P11a's is_bare_launch; dropped the "comes with P11" stubs), ledger-mcp local.rs (main's Linux gate on the no-other-end test), docs/testing.md (both sections kept). `update` and `rollback` are cfg(unix) in ledger-host (a running program's file cannot be replaced on Windows), so main.rs says so on Windows (P11a step 5). Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HS8WZziDnyxunC23MUxrLp