# Documentation

This folder contains architecture, API reference, and development documentation.

**No application code belongs here.**

## Contents

| Document | Purpose |
|----------|---------|
| `architecture.md` | App architecture, layers, patterns, request lifecycle |
| `API_REFERENCE.md` | All 23 endpoints with params, auth, and response details |
| `database_schema.md` | All 8 tables, columns, relationships, migrations |
| `code_guidelines.md` | Coding standards and Git strategy |
| `security.md` | Python-focused security guidance |
| `roadmap.md` | Feature status and future plans |

## Guidelines

- Keep documents focused and concise
- Update docs when architecture decisions change
- Use markdown tables for structured information
- Include links to external documentation where relevant