[WIP] Sync API documentation for midjourney and overview services

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

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This section details on the original issue you should resolve

<issue_title>sync: update from Docs (872179d docs: sync from PlatformBackend (zh-CN base + translations) [automated])</issue_title>
<issue_description>The upstream Docs have been updated. Ensure the affected API documentation in this monorepo is in sync.

Changed Services

midjourney,overview

Recent Docs Changes

872179d docs: sync from PlatformBackend (zh-CN base + translations) [automated]
dc10a83 docs: sync from PlatformBackend (zh-CN base + translations) [automated]
b6ac63a docs: sync from PlatformBackend (zh-CN base + translations) [automated]
14c68e6 docs: sync from PlatformBackend (zh-CN base + translations) [automated]
ffff7d2 docs: sync from PlatformBackend (zh-CN base + translations) [automated]

Instructions

This is a monorepo with API documentation in subdirectories (luma/, suno/, etc.).

Check the AceDataCloud/Docs repo for guides and OpenAPI specs.

Compare against the corresponding subdirectory's docs/ markdown files. Update any outdated information.

Only modify subdirectories matching the changed services. If everything is already in sync, close this issue.</issue_description>

Comments on the Issue (you are @copilot in this section)

[Germey]

Superseded by new sync trigger; Copilot will open a fresh PR for the latest Docs state.