Size the citation chip icon from the font's point size - #3

CitationConfig gains citationImage, an optional (destination) -> MDImage?
closure resolved once per attachment and composited ahead of the title,
sized to the chip font's cap height and tinted to match the resolved text
color in each appearance. Ignored by CitationConfig's Hashable/Equatable
(a function value can't be compared), same treatment TextContextMenuItem
already gives its own image field. Default nil keeps every existing call
site source-compatible.

Citation chips visibly ride high on their line when taller than the
line box — the existing font.descender baselineOffset only accounts
for the glyph descender space, not a chip's own extra height. Add
CitationConfig.citationBaselineAdjustment (points, default 0) applied
additively to the existing offset in both call sites (Paragraph+'s
buildParagraphContent and TableView's applyTypographyThemingAndGetContent).

Default 0 keeps today's behavior byte-identical; hosts opt in per
render config to pull a chip back toward the line's vertical center.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

…default off)

The table tap-to-expand and its copy/download buttons were shown whenever a
MarkdownController was attached — which hosts do for context-menu routing, so
they couldn't get the menu without the table chrome. Gate both behind a new
MarkdownTableTextStyle.showsActionButtons (default false); attaching a listener
no longer implies table buttons.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FdgmrPkDKRvT6uu4JzNdNg

[Fable] Table copy/download controls are opt-in (default off)

…eight

A cap-height box left the icon at about half the label's height once the
glyph's own padding inside its viewbox was subtracted; web draws a
text-size icon beside the label. 1.15x the point size (16pt at 13.5pt),
still capped by the text's line height.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PjDUZsPjzUx6tcSvCe1cr2