Premium Full-Stack Expense Engine

# Architecture Overview

Developed during my internship, this secure, decoupled, and highly responsive full-stack financial logging application handles complex transaction record persistence. Built with a FastAPI backend and a PostgreSQL database.

# Core Logic & Modules

• ✔ Asynchronous JWT Security with bcrypt hashing.
• ✔ Event-Driven SMTP Triggers for receipts.
• ✔ OTP Verification for secure account onboarding.