Pawsitive Haven

A comprehensive pet management system with AI-powered assistance, featuring GPT-4o chat for pet advice, bio generation, appointment scheduling, and admin tools with security hardening.

Pawsitive Haven is a full-stack pet management system with AI-powered assistance for pet owners. Built with a clean architecture featuring proper dependency injection, PostgreSQL from day one, and Docker-first development. Features include: AI chatbot powered by OpenAI GPT-4o-mini for pet care advice with conversation history persistence, AI-generated pet bios, pet profile management with species-specific icons, appointment and task management with filters, admin dashboard for user and FAQ management, and a resources page with pet care guides. Security features: ChatSecurityService with 30+ prompt injection detection patterns, RateLimitService with tiered limits (20/min, 100/hr, 500/day), automatic 24-hour bans after 5 violations, hardened system prompts with strict security boundaries, output filtering to prevent system prompt leakage, and input sanitization with Unicode normalization. Architecture: Blazor Server frontend communicating with ASP.NET Core 9 Web API backend, PostgreSQL 17 database, JWT authentication with BCrypt password hashing, and fully containerized with Docker Compose for both development and production environments.