is_interactive process output wraps at 80 columns instead of the pane width

[samodadela]

Defect

Make sure that these boxes are checked before submitting your issue -- thank you!

• Included the relevant configuration snippet
• Included the relevant process-compose log (log location: process-compose info)
• Included a Minimal, Complete, and Verifiable example

Version of process-compose:

Version:        v1.116.0
Commit:         1057510
Date (UTC):     2026-06-16T19:55:43Z

OS environment:

Debian GNU/Linux 13 (trixie), Linux 6.8.0-124-generic x86_64, bash

Steps or code to reproduce the issue:

process-compose.yaml:

version: "0.5"

processes:
  interactive:
    command: "sh -c 'while true; do printf \"%s\\n\" \"$(seq -s X 200 | tr -d 0-9)\"; sleep 1; done'"
    is_interactive: true

1. Start the stack in a terminal much wider than 80 columns: process-compose up.
2. Watch the interactive process pane, which prints a 199-character line each second.

Expected result:

The line uses the full TUI pane width, like a non-interactive process does.

Actual result:

The output wraps at 80 columns regardless of the actual terminal/pane width. The PTY allocated for an is_interactive: true process appears to default to an 80-column width and is not resized to the pane, so long lines wrap short.

[F1bonacc1]

Fixed in v1.120.0