Add SEO descriptions to event catalog and API reference pages

[mintlify]

Summary

Audited all 538 MDX pages for SEO and metadata quality. Found 243 pages missing a description frontmatter field across two areas:

• 192 files in event-catalog/ (webhook event reference pages)
• 51 files in api-reference/data/timeseries/ (timeseries GET endpoint pages)

All titles were already present and under 60 characters. No titles needed changes.

Changes

Added a description frontmatter field to each affected page with a plain-language summary between 50–160 characters that accurately reflects the page content:

• Event catalog: Descriptions explain when each webhook event is emitted. Patterns differ by category:
  • daily.data.*.created / .updated — data ingestion / update events from connected providers
  • historical.data.*.created — historical backfill completion events
  • provider.connection.* / provider.device.* — provider lifecycle events
  • labtest.* / lab_report.parsing_job.* / continuous_query.* — tailored descriptions per event
• API reference timeseries: Descriptions explain that each endpoint retrieves grouped timeseries data for a specific metric across a user's connected wearable providers. Clinical abbreviations (ECG, HRV, FEV1, IgE, IgG) are spelled out where helpful.

Snippets files under snippets/ were intentionally skipped — they are reusable content fragments included in other pages and are not standalone documentation.

Validation

• mint validate — build validation passed
• mint broken-links — no broken links
• Re-audit shows 0 remaining standalone pages with missing / out-of-range titles or descriptions

[mintlify]

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Project	Status	Preview	Updated (UTC)
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