docs: integration guide — hiring platforms

[basanth-p]

Summary

Write the end-to-end integration guide for hiring platforms embedding Patch ID scores into their developer evaluation workflow.

Content to cover

1. Overview — what Patch ID provides, use cases for hiring
2. Getting API access — register in console, get API key
3. Fetching a developer score — full code walkthrough
4. Interpreting buckets — what Beginner/Active/Expert/Elite means in hiring context
5. Privacy and consent — developer opt-out, what data you can/can't store
6. Webhooks — receiving real-time score updates
7. Rate limits — tiers and what to do when you hit them
8. ATS integration tips — how to pass score data to Greenhouse, Lever etc.

Deliverable

/guides/integrate-hiring-platform.mdx