feat: track accept header dimension

[mezotv]

Summary

• Apply upstream PR docs: use after for analytics proxy upstash/agent-analytics#4 docs guidance to use Next.js after() for proxy analytics tracking
• Apply upstream PR feat: track accept header dimension upstash/agent-analytics#5 accept-header tracking dimension across ingestion, schema, types, and tests

Notes

• Resolved conflicts against current main, which already drops unknown-agent requests.

Testing

• bun run typecheck
• bun test src/duration.test.ts src/time.test.ts src/hash.test.ts src/request.test.ts
• bun test (fails because UPSTASH_REDIS_REST_URL and UPSTASH_REDIS_REST_TOKEN are not configured in this environment; non-Redis tests, including the new request tests, pass)

  

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Summary by cubic

Switches analytics in the Next.js proxy to after() so tracking never blocks responses, and adds accept header tracking as a new dimension across ingestion and schema.

• New Features

  • Capture and store normalized Accept header as accept in events and the index schema.

• Migration

  • In proxy.ts, replace await analytics.track(request) with after(() => analytics.track(request)) from next/server.

^{Written for commit e604040. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 6 files

_{Re-trigger cubic}