Fix vers-client.sh issues

[AlephNotation]

Problems

Several issues in scripts/vers-client.sh need to be addressed:

1. Subshell variable scoping in vm-watch

The CURRENT_VM variable is modified inside a pipe subshell (the while loop piped from curl), so changes don't persist between iterations. This breaks the "print VM prefix only when switching VMs" logic.

# Line 348-376 - CURRENT_VM changes are lost each iteration
curl -sN "$url" | while IFS= read -r line; do
  ...
  CURRENT_VM="$vmId"  # This doesn't persist!
  ...
done

2. Same issue in watch/stream command

Similar subshell scoping issue if we wanted to track state.

3. pkill -P $$ curl may not work reliably

The run command uses pkill -P $$ curl to kill the curl process, which may not work on all systems or could kill unrelated curl processes.

Potential Fixes

1. Use process substitution instead of pipes: while read line; do ...; done < <(curl -sN "$url")
2. Use a named pipe (FIFO) for more control
3. Track curl PID explicitly and kill by PID

🤖 Generated with Claude Code on VERS