What problem does it solve? Developers working on the HostMetrics frontend lack immediate access to business rules, entity relationships, and backend API contracts, causing integration errors and repeated lookups across repositories. ## Core Features & Use Cases - Business Entity Reference: Documents the seven core entities (Profiles, Clients, Properties, Client-Properties junction, Bookings, CSV Uploads, Reports) with their relationships and critical business rules like mandatory primary ownership. - Backend API Reference: Lists all Express.js endpoints with request payloads, response formats, HTTP status codes, and implementation status for clients, properties, agreements, and PMS credentials. - Database Schema Documentation: Details the complete PostgreSQL schema including the many-to-many client_properties junction table, financial tables, and CRM tables with column types and constraints. - Use Case: When building a property management page in the Next.js frontend, consult this context to correctly call POST /api/properties with the clientId, commissionRate, and owner array, respecting the rule that every property must have exactly one primary owner. ## Quick Start Ask the AI to explain the property ownership business rules and show the API payload needed to create a new property with co-owners.