Add hidden KYB Agent API docs

[robbalian]

Summary

• Adds a single hidden docs page for the KYB Agent API at /guides/kyb-quickstart
• Covers both endpoints: POST /kyb/report/start and GET /kyb/report/{report_id}
• Points to api.reprompt.io with Bearer auth
• Includes example responses for all states (processing, completed, error)
• Hidden from navigation — accessible only via direct link
• Adds openapi-kyb.json spec for reference

Test plan

• Verify page loads at /guides/kyb-quickstart
• Confirm page does not appear in version dropdown or sidebar nav
• Review example responses for accuracy

🤖 Generated with Claude Code

[claude]

Claude finished @robbalian's task —— View job

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Review Results

Code Examples Testing

• POST /kyb/report/start: ⏭️ Skip (no API key)
• GET /kyb/report/{report_id}: ⏭️ Skip (no API key)
• Placeholder format: ✅ Uses correct YOUR_API_KEY format

Documentation Quality Assessment

✅ HIGH QUALITY - NO AI SLOP DETECTED

• Concise & Technical: Direct, no fluff or obvious explanations
• Well-structured: Clear sections, proper tables, logical flow
• Specific examples: Uses real business (Stripe Inc) with actual address
• Proper hidden attribute: hidden: true correctly set
• Good response examples: Shows all states (processing/completed/error) with realistic data

OpenAPI Spec Review

✅ ALIGNED WITH DOCUMENTATION

• Schemas match documented parameters exactly
• Required fields align: business_name, business_address
• Optional fields match: person_submitting, tax_identification_number
• Response structure matches examples
• Base URL consistent: https://api.reprompt.io

Minor Notes

• Documentation uses api.reprompt.io while OpenAPI uses api.reprompt.io (consistent)
• All endpoint paths, parameter names, and response fields align properly
• No breaking changes or inconsistencies found

Assessment: DEFINITELY_FINE

High-quality technical documentation with accurate examples. No AI slop, proper formatting, and OpenAPI alignment.