Translate custom parameter pills documentation

[mintlify]

Summary

Translates the custom parameter pills documentation added in #5545 into Spanish, French, and Chinese.

Changes

• api-playground/openapi-setup.mdx: Added "Parameter pills" section covering x-mint.pre/x-mint.post and the api.params.post config-driven option.
• organize/settings-api.mdx: Documented the new api.params.post field and updated the example.
• organize/settings-reference.mdx: Added api.params.post to the reference table and detail section.

Translations applied to es/, fr/, and zh/ mirroring the structural changes in the English source.

Generated-By: mintlify-agent

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Note

Low Risk
Low risk: documentation-only changes that add translated content and reference entries without affecting runtime behavior.

Overview
Adds a new translated section in es/, fr/, and zh/ OpenAPI setup docs describing custom parameter pills via x-mint.pre/x-mint.post and a config-driven option via api.params.post.

Documents api.params.post in the translated settings-api pages (including example docs.json) and adds it to the translated settings-reference quick table and detailed schema reference.

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