OpenSession returns a Session whose writer holds an append handle to
the jsonl file. The test never closed it, so t.TempDir's cleanup hit
'The process cannot access the file because it is being used by
another process' on windows (posix happily deletes open files).
Register a t.Cleanup that closes the reopened session.
syscall.SysProcAttr.Setsid is posix-only — unknown field on windows.
Extracted the detach-on-start logic into a detachChild function
variable, implemented in botcmd_unix.go (Setsid) and botcmd_windows.go
(DETACHED_PROCESS | CREATE_NEW_PROCESS_GROUP creation flags).
- rewrite resize_unix.go on top of golang.org/x/sys/unix so the
peek-stdin helper compiles on linux (Select returns (int, error),
Timeval.Usec is int64) as well as darwin (int32, error-only)
- promote golang.org/x/sys to a direct dep
- gofmt -w . (11 files of alignment drift from recent edits)
- install.sh / install.ps1: accept $GITHUB_TOKEN so the installers
work against the repo while it's private; no-op on public repos
- README: document the private-repo install paths (PAT for curl|bash
and powershell, GOPRIVATE for go install)
