Module parser/rules/inline/html

Inline-position gate for [[html]]...[[/html]] when the parser is configured with allowHtmlBlocks: false.

The block-level htmlBlockRule already removes [[html]] blocks that sit at the start of a line, but the block dispatcher never reaches a [[html]] that appears mid-paragraph. Without this inline rule, the body of a disabled-but-inline-positioned [[html]] would end up parsed as paragraph text and leak into the output as escaped HTML.

When enabled (allowHtmlBlocks !== false), the rule does nothing (returns success: false) so the existing paragraph behaviour is preserved: a stray inline [[html]] renders as text. The block-level rule handles the proper case where [[html]] is on its own line.

When disabled (allowHtmlBlocks === false):

• A well-formed [[html ...]]...[[/html]] is fully consumed and produces no AST element, emitting an html-block-disabled info diagnostic.
• An unclosed [[html ...]] is consumed to the end of the token stream so the body cannot leak as inline text, emitting both unclosed-block (warning) and html-block-disabled (info).