Lab #377: Terminal rendering breaks at large font sizes

Description

Swamp's terminal UI does not render correctly when the terminal font size is increased. Layout elements overflow, wrap incorrectly, or become visually broken, making the output difficult or impossible to read.

Steps to Reproduce

Open a terminal emulator and increase the font size (e.g. zoom to 20pt or larger, or use Ctrl+= several times).
Run any swamp command that produces formatted output (e.g. swamp model list, swamp model get <name>).
Observe that the output layout is broken — columns misalign, borders overflow, or content wraps unexpectedly.

Expected Behavior

Swamp should detect the current terminal dimensions and adapt its rendering to fit within the available columns, regardless of font size.

Actual Behavior

The TUI layout overflows or wraps incorrectly when the terminal font size is large. The issue appears to be related to terminal column/row detection not reacting to the reduced character-cell count that results from a larger font size.

Environment

Swamp version: 20260518.162558.0-sha.83d24155
OS: Linux 6.19.14-101.fc44.x86_64 (Fedora 44)
Shell: bash

Summary

This bug affects the terminal rendering/layout component. The fix would likely involve ensuring swamp re-queries terminal dimensions dynamically (e.g. via TIOCGWINSZ or the $COLUMNS/$LINES environment variables) and uses those values to constrain all output width calculations, rather than relying on a static or incorrectly cached terminal size.

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Terminal rendering breaks at large font sizes

Relationships

#377 Terminal rendering breaks at large font sizes