🤖 fix: preserve existing GIT_SSH_COMMAND when set (#861)

Instead of overwriting `GIT_SSH_COMMAND` entirely, append SSH options to
the existing value. Falls back to `ssh` if not set.

This allows users who have custom SSH commands configured (e.g., for
specific identity files or proxy settings) to still benefit from our
BatchMode and StrictHostKeyChecking options.

_Generated with `mux`_

Author: deansheather

src/common/utils/git/gitStatus.ts

@@ -92,7 +92,7 @@ export const GIT_FETCH_SCRIPT = `
 export GIT_TERMINAL_PROMPT=0
 export GIT_ASKPASS=echo
 export SSH_ASKPASS=echo
-export GIT_SSH_COMMAND="ssh -o BatchMode=yes -o StrictHostKeyChecking=accept-new"
+export GIT_SSH_COMMAND="\${GIT_SSH_COMMAND:-ssh} -o BatchMode=yes -o StrictHostKeyChecking=accept-new"
 
 # Fast fetch with optimization flags
 git -c protocol.version=2 \\