auto-docs: Update Admin API docs for v26.1.2

[vbotbuildovich]

This PR adds the latest OpenAPI spec for version v26.1.2 of the Redpanda Admin API:

npx doc-tools generate bundle-openapi --tag v26.1.2 --use-admin-major-version --surface admin --out-admin admin/admin-v2.yaml

[coderabbitai]

📝 Walkthrough

Walkthrough

The admin/admin-v2.yaml OpenAPI specification file was updated with new metadata values. The x-generated-at timestamp was updated to reflect the generation time as of 2026-01-23T19:28:04.258Z, and the x-redpanda-core-version was incremented from v25.3.5 to v25.3.6. No changes were made to API paths or operation definitions.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• api-docs#31: Updates metadata in admin/admin-v2.yaml including x-generated-at timestamp and version fields.
• api-docs#50: Modifies admin/admin-v2.yaml and updates x-generated-at and x-redpanda-core-version metadata fields.
• api-docs#29: Introduced the v2 OpenAPI spec and updates its metadata fields like x-generated-at and x-redpanda-core-version.

Suggested reviewers

• kbatuigas
• paulohtb6

🚥 Pre-merge checks | ✅ 1 | ❌ 2

❌ Failed checks (2 warnings)

Check name	Status	Explanation	Resolution
Title check	⚠️ Warning	The PR title references v26.1.2 but the actual changes update the spec to v25.3.6, creating a version mismatch between the title and the changeset.	Update the PR title to 'auto-docs: Update Admin API docs for v25.3.6' to match the actual OpenAPI spec version being updated.
Description check	⚠️ Warning	The PR description mentions v26.1.2 but the objectives and actual file changes indicate the spec was generated for v25.3.6, showing inconsistency.	Correct the version in the description from v26.1.2 to v25.3.6 to accurately reflect what is being updated in the changeset.

✅ Passed checks (1 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch auto-docs/admin-api

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[github-actions]

🚨 Breaking Redpanda/admin (branch: v2) API change detected

Preview documentation

Structural change details

Modified (9)

• POST /redpanda.core.admin.v2.SecurityService/CreateScramCredential
  • Content type modified: application/json
    • Property modified: scramCredential
      • Property added: passwordSetAt
• POST /redpanda.core.admin.v2.SecurityService/UpdateScramCredential
  • Content type modified: application/json
    • Property modified: scramCredential
      • Property added: passwordSetAt
• POST /redpanda.core.admin.v2.ShadowLinkService/CreateShadowLink
  • Content type modified: application/json
    • Property modified: shadowLink
      • Property modified: configurations
        • Properties modified: clientOptions, consumerOffsetSyncOptions, securitySyncOptions, topicMetadataSyncOptions
        • [Breaking] Property modified: shadow_schema_registry_topic
          • Name is no longer schemaRegistrySyncOptions [Breaking]
      • Property added: status
  • Response modified: 200
    • Content type modified: application/json
      • Property modified: shadowLink
        • Properties modified: configurations, status
• POST /redpanda.core.admin.v2.ShadowLinkService/FailOver
  • Response modified: 200
    • Content type modified: application/json
      • Property modified: shadowLink
        • Properties modified: configurations, status
• POST /redpanda.core.admin.v2.ShadowLinkService/GetShadowLink
  • Response modified: 200
    • Content type modified: application/json
      • Property modified: shadowLink
        • Properties modified: configurations, status
• POST /redpanda.core.admin.v2.ShadowLinkService/GetShadowTopic
  • Response modified: 200
    • Content type modified: application/json
      • Property modified: shadowTopic
        • Property modified: status
• POST /redpanda.core.admin.v2.ShadowLinkService/ListShadowLinks
  • Response modified: 200
    • Content type modified: application/json
      • Property modified: shadowLinks
        • Properties modified: configurations, status
• POST /redpanda.core.admin.v2.ShadowLinkService/ListShadowTopics
  • Response modified: 200
    • Content type modified: application/json
      • Property modified: shadowTopics
        • Property modified: status
• POST /redpanda.core.admin.v2.ShadowLinkService/UpdateShadowLink
  • Content type modified: application/json
    • Property modified: shadowLink
      • Property modified: configurations
        • Properties modified: clientOptions, consumerOffsetSyncOptions, securitySyncOptions, topicMetadataSyncOptions
        • [Breaking] Property modified: shadow_schema_registry_topic
          • Name is no longer schemaRegistrySyncOptions [Breaking]
      • Property added: status
  • Response modified: 200
    • Content type modified: application/json
      • Property modified: shadowLink
        • Properties modified: configurations, status

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[kbatuigas]

Diffs are due to the implemented allOf workaround for this API. redpanda-data/docs-extensions-and-macros#179 adds a post processing step that will apply the workaround to incoming v2 specs