* fix: detect terminal width via stderr when stdout is piped
When Claude Code runs the statusLine as a subprocess, stdout is captured
(piped), so process.stdout.columns is undefined. With no terminal width,
long lines aren't wrapped by the HUD — the terminal wraps them silently
instead. Claude Code counts \n characters to determine how many lines to
erase on the next render, so the physical line count diverges from what
Claude Code expects. Over successive renders the cursor drifts upward into
the scrollback buffer, causing the terminal to jump to the top on every
tool execution (https://github.com/jarrodwatts/claude-hud/issues/209).
Fix: fall back to process.stderr.columns before the COLUMNS env var.
When the statusLine subprocess is spawned, only stdout is redirected;
stderr remains connected to the real TTY and returns the correct width.
With accurate width, lines are properly wrapped in the HUD output and
Claude Code's line count stays consistent.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* chore: drop dist artifacts and cover stderr width
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: Jarrod Watts <jarrod@cubelabs.xyz>
* feat(config): add showSessionName toggle (default off)
Session name display from #155 is now opt-in via display.showSessionName
config. This addresses user feedback requesting the ability to hide the
session name. Added to setup onboarding and configure command flows.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* test(docs): cover session-name default behavior
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Jarrod Watts <jarrod@cubelabs.xyz>
