Support batch close: accept multiple tab IDs in one invocation

[joelhelbling]

Request

Extend tabb close to accept multiple tab IDs in a single invocation:

tabb --profile WidestCircle close 123 456 789

Currently close accepts only one ID at a time, which means callers need to script a loop:

for id in 123 456 789; do tabb --profile WidestCircle close $id; done

Motivation

During speedrun/triage sessions, it's common to close 10-30 tabs at the end of a batch. The loop form is harder to allowlist in tools like Claude Code (the for ... do ... done pattern triggers a fresh permission prompt each time), and it's one shell call per tab, so a single multi-ID form would be more ergonomic and faster.

Suggested behavior

• tabb [--profile X] close <id1> [<id2> ...] — close all provided IDs.
• Continue on error: if one ID is invalid or the tab is already gone, print a warning and keep going.
• Exit non-zero if any close failed (so scripts can still detect problems).
• Single-ID invocation keeps working unchanged.

Related

• show could arguably accept a list too, but that's less compelling than close.
• focus is inherently single-target, so probably shouldn't change.