## Summary
- Increase chat list panel width from 240px to 272px and app item width
from 190px to 206px for better readability
- Adjust overall sidebar width from 18rem to 19rem and icon column from
5rem to 4.5rem

## Test plan
- Open the app and verify sidebar renders at the new width
- Verify chat list items and app items display correctly without
truncation
- Verify icon column alignment looks correct

🤖 Generated with [Claude Code](https://claude.com/claude-code)
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<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Widened the chat list panel (240px→272px) and app item width
(190px→206px), and adjusted the sidebar (18rem→19rem) and icon column
(5rem→4.5rem) to improve readability and alignment.

<sup>Written for commit 5b43043809979d2b09e7b86cfdae9c2b2f757241.
Summary will update on new commits.</sup>

<!-- End of auto-generated description by cubic. -->

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Purely presentational layout tweaks (Tailwind widths/CSS vars) with no
changes to data flow, auth, or persistence logic.
> 
> **Overview**
> Increases the right-hand panel width in `app-sidebar.tsx`
(chat/apps/settings/library lists) and the per-row width in `AppItem` to
reduce truncation.
> 
> Updates global sidebar sizing constants in `ui/sidebar.tsx`, widening
the expanded sidebar while slightly narrowing the collapsed icon rail to
rebalance spacing.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
5b43043809979d2b09e7b86cfdae9c2b2f757241. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>