feat: add link and wikilink hover cards and Mod+click handlers

[ocavue]

Adds four <Editor> props: onLinkHover, onLinkClick, onWikilinkHover, onWikilinkClick.

• Hover (while focused) over a link/wikilink opens a floating card after a short dwell. The host fills it by returning a React node (sync or as a promise) from onLinkHover / onWikilinkHover; returning nothing shows a built-in card (URL plus Edit / Copy / Open for links, Edit / Open for wikilinks).
• Plain click edits the link text; Mod+click (Cmd/Ctrl) fires onLinkClick / onWikilinkClick for host-controlled navigation.
• @meowdown/core gains defineLinkClickHandler / defineWikilinkClickHandler and the linkAt / wikilinkAt hit-test helpers.

The hover card anchors to the hovered element via ProseKit's new InlinePopoverRoot anchor prop (prosekit#1678).

Depends on the prosekit beta (@prosekit/react@0.8.0-beta.0, @prosekit/web@0.9.0-beta.0, @prosekit/extensions@0.17.5-beta.0); repin to a stable release before merging.

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Project	Deployment	Actions	Updated (UTC)
meowdown	Ready	Preview, Comment	Jun 13, 2026 6:24pm

[github-actions]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	93.42%	1165 / 1247
🔵	Statements	91.25%	1304 / 1429
🔵	Functions	90.06%	263 / 292
🔵	Branches	83%	679 / 818

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
packages/core/src/index.ts	0%	0%	0%	0%
packages/core/src/style.css	0%	0%	0%	0%
packages/core/src/extensions/link-click.ts	68%	56.25%	100%	73.68%	39-43, 67
packages/core/src/extensions/link-hit.ts	90.62%	83.33%	100%	100%	46, 48, 85, 87, 113, 116
packages/react/src/index.ts	0%	0%	0%	0%
packages/react/src/components/editor.tsx	100%	75%	100%	100%
packages/react/src/components/link-card-default.tsx	100%	62.5%	100%	100%
packages/react/src/components/link-hover-card.module.css	0%	0%	0%	0%
packages/react/src/components/link-hover-card.module.d.css.ts	0%	0%	0%	0%
packages/react/src/components/link-hover-card.tsx	80.41%	76%	68.96%	81.06%	81-82, 97-98, 102-103, 109-114, 119-120, 129, 135-149, 173-174, 184, 188, 200-201, 211, 223-224, 230
packages/react/src/components/prosekit-editor.tsx	98.14%	91.42%	100%	100%	123
packages/react/src/components/types.ts	0%	0%	0%	0%

Generated in workflow #95 for commit a9de9e9 by the Vitest Coverage Report Action