test(seo): enable article schema gate policy for release closeout

[fermatmind]

What changed

• Updated article release closeout schema/hreflang policy so enabled Article + Breadcrumb gates can complete closeout.
• Allows FAQ schema closeout only when generated JSON-LD currently contains FAQPage.
• Allows reciprocal hreflang gate policy while preserving schema/hreflang hold and no_hreflang compatibility.
• Added focused closeout tests for reciprocal hreflang, FAQPage pass, and FAQ missing blocked states.

Why

Daily bilingual article releases need schema and hreflang to be independent release gates instead of permanent closeout holds, while keeping old held content compatible and keeping articles:seo-gate-rollout as the write authority.

Validation

• php artisan test --filter=ArticleSeoGateRolloutCommandTest
• php artisan test --filter=ArticleReleaseCloseoutCommandTest
• php artisan route:list
• git diff --check

Intentionally deferred

• No CMS content writes.
• No importer default schema/hreflang enablement.
• No URL Truth, Search Channel, GSC, sitemap/llms, revalidation, deploy, or production writes.

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Revalidate reciprocal hreflang before closing out

When hreflang_gate_v1 contains this policy but the counterpart has since been unpublished or the marker was copied into schema_json, closeout now treats hreflang as OK without checking the generated alternates. The rollout writer verifies both en and zh-CN alternates and reciprocal links in ArticleSeoGateRollout::validateReciprocalHreflang() (lines 265-299), but this gate only checks the marker, so articles:release-closeout can report success while public SEO no longer emits a reciprocal hreflang pair.

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