The CLI never builds the v2 location stack, so the .git watcher that
feeds Vcs branch updates never starts and the sidebar branch label goes
stale after a git switch outside Kilo.
Warm the LocationServiceMap entry for the instance directory during
kilocode bootstrap. This starts the same watcher the file/pty handlers
use, keyed by the same ref, so the stack is shared instead of
duplicated. The warm-up is forked off the bootstrap critical path and
failures only log a warning.
Fixes#12225
Johnny Amancio
520679a91f