Gigi AI Ops — Enterprise AI Customer Support Agent 🤖 Production-grade AI agent backend for D2C e-commerce. Built with zero-trust architecture — every LLM output validated before touching the database. 🔧 Built: - Zero-trust session security — blocks prompt injection & credential spoofing attacks - Hybrid RAG pipeline: BM25 + dense vector search via pgvector for zero-hallucination FAQ answers - Multi-provider LLM fallback: Groq → OpenRouter → Gemini - Human-in-the-loop approval flow for refunds & financial operations above threshold - LLMOps telemetry with cost tracking in USD/INR via tiktoken 🛠️ TypeScript · LangGraph.js · Node.js · PostgreSQL · pgvector · Redis · BullMQ · Zod · Langfuse 🔗 github.com/shubhambhattacharya-dev/Agentic_Project