Adds a reload button to the app titlebar visible only in PWA standalone
or fullscreen mode, and a pull-to-refresh gesture on the messages container
that smooth-scrolls to the top before activating.
The reload button sits next to the message count label and provides a
one-tap refresh for users who installed the WebUI as a home-screen app
where browser navigation controls are unavailable.
The pull-to-refresh gesture detects downward drag at the top of the
message list, shows a visual indicator ('Pull to refresh' / 'Release to refresh'),
and reloads on release past the 80px threshold. When triggered mid-conversation,
it smooth-scrolls to the top first.
Opus advisor on stage-371 caught three issues during pre-release review:
1. RTL salvage missed KaTeX math (display equations + inline LaTeX), diff
blocks, CSV tables (column order must read left-to-right regardless of
chat direction), and .skill-file-path. The first salvage commit only
covered pre/code/kbd/samp/tt and tool-call bodies. Added a second
force-LTR block covering: .katex, .katex-block, .katex-display,
.katex-html, .katex-inline, .diff-block (+children), .csv-table-wrap,
.csv-table (+children), .skill-file-path. Severity: KaTeX is the most
user-visible gap — any user rendering math under RTL would see flipped
equations.
2. Quota chip @media (max-width:1400px) hide rule conflicted at exactly
1400px with the existing @media (min-width:1400px) .messages-inner
rule — chip was hidden AT the wide-desktop boundary where it should
first appear. Changed to (max-width:1399.98px). Visually verified at
1400px: chip now correctly visible there.
3. Dead .icon-btn.provider-quota-chip selector — chip never has icon-btn
class. Removed.
Test added: test_rtl_math_and_tables_stay_ltr (pins the 4 new LTR
surfaces). Also removed dead code in test_rtl_code_blocks_stay_ltr
(unused code_block variable).
Per stage-fix protocol: SHIP-with-followup applied on the stage rather
than the source PR, since #2409 is already merged-into-stage and
nesquena-approved. Stage-371 review-bypass batch path still holds.
- Remove duplicate mobile-close-btn from HTML
- Remove dead .mobile-close-btn CSS rules; unhide .close-preview at all viewports
- Change btnClearPreview tooltip from 'Hide workspace panel' to 'Close'
- Update tests across test_sprint41.py, test_sprint44.py, test_issue781.py,
and test_mobile_layout.py to match new single-button model
