Add Koala analytics integration docs

[mintlify]

Summary

• Added documentation for the Koala analytics integration, which was supported in the platform but missing from the docs.
• New dedicated integration page with configuration example and setup instructions.
• Updated the analytics overview, settings reference, and navigation to include Koala.

Triggered by package bump mintlify/mint@8532366.

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Note

Low Risk
Low risk: documentation-only updates (new page, navigation, and schema references) with no runtime code or behavior changes.

Overview
Koala analytics integration is now documented. Adds a new integrations/analytics/koala.mdx page showing how to configure integrations.koala.publicApiKey in docs.json.

Updates the analytics integrations overview to list/link Koala (including adding it to the docs.json navigation) and extends the integrations settings docs (settings-integrations.mdx and settings-reference.mdx) to include the integrations.koala.publicApiKey field and requirements.

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[mintlify]

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Project	Status	Preview	Updated (UTC)
mintlify	🟡 Building	–	Mar 24, 2026, 10:50 PM