feat(docs): switch to the namespaced documented-data-type marker

[kozlek]

The engine renamed its documented-data-type flag from x-has-data-type
to x-mergify-has-data-type, matching the namespacing already used for
x-mergify-enum. An unprefixed x- key is a claim on a name nobody
owns, which is how x-enum-descriptions ended up meaning a positional
array of strings to openapi-generator and a map to us.

Read the new spelling only. The engine publishes both today, so this is
safe now — and reading only one is what makes dropping the other
possible: while a consumer accepts either, nothing can tell which it
actually depends on, so the removal can never be shown to be safe. This
is the step that unblocks it.

Only isDataType reads the flag — the anchor collector, both config
tables and the build gate all go through it — so this is one predicate,
not a sweep. The comments and the anchor-check message that named the
old key are updated with it; a marker's name appearing in prose that no
longer matches what the code looks for is how the next reader gets sent
after the wrong thing.

Part of MRGFY-8330

Co-Authored-By: Claude Opus 5 (1M context) noreply@anthropic.com

Depends-On: #12304

[kozlek]

This pull request is part of a Mergify stack:

#	Pull Request	Link
1	refactor(docs): read documented enum values through one shared reader	#12293
2	fix(docs): sanitize the HTML the schema-driven tables inject	#12304
3	feat(docs): switch to the namespaced documented-data-type marker	#12319	👈
4	feat(docs): document the batch status data type	#12263

[mergify]

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• depends-on = Mergifyio/docs#12304 [⛓️ fix(docs): sanitize the HTML the schema-driven tables inject #12304]

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[kozlek]

Revision history

#	Type	Changes	Reason	Date
1	initial	48a347c		2026-08-05 14:00 UTC
2	rebase	48a347c → a05bc6a (rebase only)		2026-08-05 14:00 UTC
3	rebase	377f628 → ec818fc (rebase only)		2026-08-06 07:53 UTC

[mergify]

Merge Queue Status

• ✅ Entered queue — 2026-08-06 09:45 UTC · Rule: default · triggered by merge protections
• ✅ Checks passed · on draft merge queue: checking main (a620bcb) and #12319 together #12332
• ✅ Merged — 2026-08-06 09:48 UTC · at 08dfd8426284715f4efef5a29480808f0e1f5efe · squash

This pull request spent 2 minutes 39 seconds in the queue, including 2 minutes 8 seconds running CI.

Required conditions to merge

• depends-on = Mergifyio/docs#12304 [⛓️ fix(docs): sanitize the HTML the schema-driven tables inject #12304]
  • feat(docs): switch to the namespaced documented-data-type marker #12319
• github-review-approved [🛡 GitHub repository ruleset rule Require pull request for default branch]
  • feat(docs): switch to the namespaced documented-data-type marker #12319
• schedule=Mon-Fri 09:00-17:30[Europe/Paris]
• all of [🛡 Merge Protections rule Enforce conventional commit]:
  • title ~= ^(fix|feat|internal|docs|style|refactor|perf|test|build|ci|chore|revert|ui)(?:\(.+\))?!?:
    • feat(docs): switch to the namespaced documented-data-type marker #12319
• all of [🛡 Merge Protections rule 👀 Review Requirements]:
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    • #approved-reviews-by >= 2
      • feat(docs): switch to the namespaced documented-data-type marker #12319
    • author = dependabot[bot]
      • feat(docs): switch to the namespaced documented-data-type marker #12319
    • all of:
      • author = mergify-ci-bot
        • feat(docs): switch to the namespaced documented-data-type marker #12319
      • -head ~= ^docs-agent/
        • feat(docs): switch to the namespaced documented-data-type marker #12319
• all of [🛡 Merge Protections rule 📕 PR description]:
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    • feat(docs): switch to the namespaced documented-data-type marker #12319
• all of [🛡 Merge Protections rule 🔎 Reviews]:
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    • feat(docs): switch to the namespaced documented-data-type marker #12319
  • #review-requested = 0
    • feat(docs): switch to the namespaced documented-data-type marker #12319
  • #review-threads-unresolved = 0
    • feat(docs): switch to the namespaced documented-data-type marker #12319
• all of [🛡 Merge Protections rule 🤖 Continuous Integration]:
  • all of:
    • check-success = build
    • check-success = lint
    • check-success = test
    • any of:
      • check-success = test-broken-links
      • label = ignore-broken-links
        • feat(docs): switch to the namespaced documented-data-type marker #12319
    • any of:
      • check-success=Cloudflare Pages
      • -head-repo-full-name~=^Mergifyio/
        • feat(docs): switch to the namespaced documented-data-type marker #12319