Carry authored inline list-style through the transformer

[borkweb]

Problem

An authored inline list-style is silently dropped. list-style was referenced zero times in the entire transformer source.

Confirmed on a real build, calm-lantern's site footer:

DESIGN:    <ul style="list-style:none;margin:0;padding:0;display:grid;gap:0.5rem;font-size:0.95rem;">
GENERATED: <ul style="color:...;margin-top:0;...;font-size:0.95rem" class="wp-block-list be-inline-geometry-... ...">

margin, padding, font-size and color map to native attributes; display:grid and gap ride the layout carrier. list-style:none is gone entirely.

User-visible: footer links render with bullets the design does not have, and a "Three steps, no mystery" list renders a stray 1. 2. 3. before each item. Authored inline list-style usage across the seven-project corpus: 35.

Class-rule list-style:none in a stylesheet already survives, so this is specifically the inline path.

Fix

Carry authored list-style and its longhands (list-style-type, list-style-position, list-style-image) on the existing geometry carrier. No core block exposes list-marker styling as a block support, so unlike borders this legitimately belongs on the carrier rather than a native attribute. No !important is introduced.

Verification

• Test committed before the fix. At the test-only commit the suite fails 3/107; with the fix, 107 pass.
• composer test / composer test:unit: 107 assertions, 0 failures.
• Static parity: byte-identical to a freshly-run trunk baseline (md5 matches on both sides), baseline run at this branch's exact merge-base.
• Zero parity fixtures edited.
• A list with no authored list-style is asserted unchanged, including assets === [], so markers still render and no carrier is added.

Verified end to end in a generated site: calm-lantern's footer bullets and the stray 1. 2. 3. are both gone.

Notes

Release-gated. minimalistic-site-builder consumes this only after a tagged release and a constraint bump, the same sequence as #883 -> v0.4.20.