fix(cli): deduplicate parent and child theme targets

[cixzhang]

Why

Theme authors could see duplicate Table section targets because both the Table parent and its child docs correctly expose the same metadata for different lookup paths.

What

• Preserve direct theming docs for TableHeader, TableBody, and TableFooter.
• Canonicalize parent/child duplicates in CLI target discovery under the parent owner, while retaining unrelated shared-target rows.
• Add direct-doc and unfiltered-discovery regression coverage for all three Table sections.
• Add a CLI patch Changeset.

Risk

CLI metadata discovery only; Table runtime behavior is unchanged.

Testing

• Full CLI suite: 2,880 tests
• Focused Table suite: 130 tests
• CLI strict, authoring, JSON API, template-docs, and core docs typechecks
• pnpm check:repo

[vercel]

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Project	Deployment	Actions	Updated (UTC)
astryx	Ready	Preview	Aug 31, 2026 7:02am

[github-actions]

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No new or modified components detected.

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No component packages changed.

Accessibility Audit

Status: No accessibility violations detected.

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