[123soulshell]

Summary

<br> is inline raw HTML; CommonMark and GitHub render it as a hard line
break. The kernel's inline-HTML branch only matched paired tags (<u>,
<ins>, <sub>, <sup>, <kbd>, <mark>), so <br> fell through to a
plain text leaf and the tag itself was displayed.

Repro (read-only, @do-md/core-react 0.14.0):

const md = [
  "| 账号 | 5 小时滚动 |",
  "| --- | --- |",
  "| 账号1 | 4%<br>重置 11-02 18:18 |",
].join("\n");

<DOMDProvider initMd={md} editable={false}><DOMD /></DOMDProvider>

Actual: the cell shows 4%<br>重置 11-02 18:18 — the literal tag.
Expected: a line break inside the cell, the way GitHub renders the same
Markdown.

This shape is common in AI output: a comparison table in a task receipt has no
in-cell newline (GFM tables cannot express one), so models write the second
line as <br>. It also shows up mid-paragraph (第一行<br>第二行) and anywhere
else a hard break is written as inline HTML.

Fix

• parseInline.ts — match bare <br> / <br/> / <br /> (any case) in the
  < branch and build the same wrapper shape the image branch uses: a hidden
  MdSymbol carrying the exact source text, plus a Br leaf next to it that
  renders the real <br>. The source text still lives in the model, so
  toMarkdown(parseMarkdown(md)) stays byte-exact.
• getHTMLText.ts — a bare <br> at the start of a line now falls through to
  the inline parser instead of being claimed by the HTML-block path first
  (which rendered the tag as text inside a div).

Attributes are intentionally out of scope — <br class="x"> keeps its current
behavior, same as the other bare inline tags.

Verification

New harness — cd .packages/@do-md/core && sh scripts/verify-inline-br/run.sh —
28 assertions:

• paragraph and table-cell breaks produce exactly one Br node, and the
  visible text contains no tag;
• <br>, <br/>, <br />, <BR>, <Br/> all parse and round-trip
  byte-exact;
• nested inside <u>, leading <br> at line start, canonical-table fixed
  point;
• non-regressions: <https://…> autolink, fenced code, <br class="x"> stay
  literal text.

Also ran: verify-table-after-paragraph 20/20, verify-softbreak 32/32,
kernel tsc --noEmit clean. verify-empty-blocks reports 40/42 with the same
two pre-existing failures as on main (empty checkbox / empty blockquote
shapes, unrelated).

Rendered check in a jsdom consumer (read-only DOMDProvider): the table cell
now contains <br class="DOMD-Br"> between the text spans, and the tag is no
longer visible.

Happy to adjust the approach (node shape, scope, or where the tag falls
through) if you'd prefer something different.

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