Constant GIT_EXEC_TIMEOUT 

const GIT_EXEC_TIMEOUT: Duration;

Upper-bound wall time for any single git invocation. Generous enough that legitimately slow operations (large monorepo clones with credential prompts, file-share-backed working copies, full-repo log walks) finish well within budget, but tight enough that a hung subprocess - stalled on a credential prompt with no TTY, a stuck index lock, or a network mount that has gone unresponsive - releases the Mountain effect slot before the extension host’s own watchdog fires.