Encode the callout scale and the doc card props in the Inki linter

[pwizla]

This PR encodes 2 sets of component conventions in the Inki style linter, in the style checker prompt, and in the authoring guides.

Callouts:

• danger-admonition (error) flags :::danger, which is not part of the scale (info, note, tip, prerequisites, caution, warning) and renders the same red block titled "Warning" as :::warning, so it adds no signal.
• admonition-run (warning) flags 3 or more callouts in a row, whatever their types: a wall the reader stops reading.
• same-type-admonitions (warning) flags 2 callouts of the same type back to back, which are one callout and belong in a single block with a bullet per point.
• stacked-alerts (warning) flags 2 high-level callouts (caution, warning, danger) back to back, which flattens the hierarchy into a wall of red.

A pair of different low-level types, and the documented :::prerequisites plus :::caution page-header motif, are deliberately not flagged as long as the run stops at 2.

Doc cards:

• unknown-card-prop (error) flags any prop <CustomDocCard> does not read. The component destructures exactly title, description, link, icon and small, so the emoji prop found on 62 of the 152 cards in the docs renders a card with no icon and reports nothing. <SubtleCallout> does take an emoji, so the rule is scoped to the card component rather than to the prop name.
• templates/components/doc-cards.md documents the card components, which had no authoring guide despite being the most used custom component in the docs: the real props, the 2 wrappers, the single-line truncation of description, and the emoji trap.

Measured on the 343 pages under docusaurus/docs: 5 :::danger occurrences, 14 runs of 3 or more callouts, 8 same-type pairs, 1 stacked alert, and 62 dead emoji props. Scoping matters: a first version of the run check flagged any 2 consecutive callouts and fired 122 times, mostly on harmless note and tip pairs. Neither the plugin version nor the changelog is bumped, following #3466.

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Project	Deployment	Actions	Updated
documentation	Ready	Preview	Sep 11, 2026 9:39am UTC

[pwizla]

LGTM 🚀