Auto-collapse long lists of background commands

Problem

In jcode v0.77.1, when a large number of bg (background) commands accumulate, the entire list is displayed in full. This can take up a lot of screen space and makes it harder to quickly see the most relevant information.

Suggestion

Automatically collapse the list of bg commands when it exceeds a certain threshold (e.g., 10 items). Only the first few commands would be shown, with an option to expand and view the rest (e.g., via a toggle or a simple "show more" indicator).

Benefits

• Keeps the output clean and focused.
• Reduces visual noise, especially in long-running sessions.
• Makes it easier to glance at recent commands without scrolling.

Additional notes

• The threshold could be configurable (e.g., via a setting or command-line flag).
• Users who prefer the full list could have a way to disable the collapsing.

This is a quality-of-life improvement that would make the tool more pleasant to use.

Start by locating the CLI or terminal UI code that renders the list of bg background commands and inspect how command output is displayed. Decide how the threshold and expansion behavior fit the existing interface, then verify that long lists show only the intended initial entries while users can still view the complete list.