`CLAUDE.md`

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# StudentLoanTracker

## Overview
Free student loan repayment calculator, PSLF tracker, servicer directory, and summer aid planner.

## Infrastructure
- **Port**: 7450
- **PM2**: student-loan-tracker
- **DB**: PostgreSQL schema `slt` in dw_unified
- **Auth**: admin/DWSecure2024! (admin), Supabase Auth (users)

## Tech Stack
- Next.js 16 + TypeScript + Tailwind CSS
- PostgreSQL (schema: slt)
- Client-side PDF.js + Tesseract.js for file intelligence
- Supabase Auth for optional accounts

## Modules
1. Calculator (SAVE/IBR/PAYE/ICR/comparison)
2. Loan Intake (manual + StudentAid TXT upload)
3. PSLF Progress Tracker
4. Servicer Directory
5. Summer Aid Planner
6. Admin Panel

## PRIVACY
- Guest mode: no login required, no data stored
- Saved mode: optional account, encrypted storage
- Files: process in browser then discard (unless user opts in)
- NEVER expose PII in logs, URLs, or analytics