Update from code changes: document Mixpanel data residency region

[mintlify]

Summary

Documents the new optional region field on the Mixpanel analytics integration in docs.json, which routes events to Mixpanel's US, EU, or India ingestion host.

Changes

• Added a "Data residency" section to the Mixpanel integration page covering supported region values (us, eu, in), the matching Mixpanel hosts, and the default behavior when region is omitted.
• Mirrored the new section in the Spanish, French, and Chinese translations.

Context

Mixpanel is deprecating US-to-EU data forwarding, so projects with EU or India data residency need to send events directly to the regional host. The new region option exposes this in docs.json; omitting it preserves the existing US default.

Update history

• Initial: documented the new optional region field on the Mixpanel integration (us / eu / in) with hosts, defaults, and translations for es, fr, zh. Source: mintlify/mint#8685.
• Follow-up: wrapped the translated "Data residency" headings in <div id="data-residency"> anchors to preserve shared link anchors across es, fr, and zh.
• Follow-up: no docs change needed for backend persistence of region on the Deployment schema — user-facing config surface is unchanged from what's already documented. Source: mintlify/server#6194.

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Note

Low Risk
Documentation-only updates to Mixpanel integration pages with no runtime or config schema changes in this diff.

Overview
Adds a Data residency section to the Mixpanel analytics docs explaining the optional region field in docs.json, so events go to the correct Mixpanel ingestion host (us, eu, or in) instead of defaulting to the US endpoint.

The section includes an EU example config, lists each region and its API host, and notes that mismatched hosts cause Mixpanel to drop events. The same content is added to the es, fr, and zh Mixpanel pages; translated locales wrap the heading in <div id="data-residency"> for stable anchor links.

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[lawreka]

don't merge until server bump is in https://github.com/mintlify/server/pull/6194

[mintlify]

Update from code changes updated this PR.

No docs added in this update

Source PRs

• mintlify/server#6194 — Persist Mixpanel region on Deployment integrations