The 380px panel is the wrong shape for anything that needs room. This opens
the wallet as a full Theseus tab, with the sidebar's own furniture — identity,
network, balance, section nav, wallet list — laid out as a left rail and the
tab body given to the selected section.
It is the SAME panel.html, loaded with ?surface=web. No second wallet, no
second copy of 4,600 lines to drift apart. That works because an add-on's own
tab is handed a window.silentmode with the same invoke/on surface as the
sidebar, and addon-msg dispatches it as from:"panel" with the add-on identity
derived from the file:// sender — so every existing handler, including the
panel-only ones, works there untouched. The whole change is a CSS grid behind
one attribute plus a chip to open it.
Details that needed care:
- The QR is drag-sized against a 380px panel and the size is remembered.
Given a 720px column it filled the page, so it is capped on this surface
only; the stored sidebar preference is left exactly as the user set it.
- #drop (the coin picker sheet) is fixed-position and sized for the panel;
it is pinned to the rail instead of covering the window.
- Content columns are capped at 720px so forms and lists keep the measure
the sidebar already tuned, rather than stretching across a monitor.
- Under 900px the grid falls back to the stacked layout, so a narrow window
degrades to what the sidebar already does.
- The "open full screen" chip hides itself on the full-screen surface, so it
cannot open a second copy of itself.
Everything is scoped to [data-surface="web"], so the sidebar is byte-for-byte
unchanged. Verified both surfaces, the narrow fallback (by exercising the
real media rule) and zero horizontal overflow.
The aegis.x/app URL still needs a main.js route in Theseus; this ships the
destination over the add-on channel first.
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