# Backend Development Guidelines

> Best practices for backend development in this project.

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## Overview

This directory captures backend conventions observed from the current repository (not aspirational rules).

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## Guidelines Index

| Guide | Description | Status |
|-------|-------------|--------|
| [Directory Structure](./directory-structure.md) | Module organization and file layout | Completed |
| [Database Guidelines](./database-guidelines.md) | ORM patterns, queries, migrations | Completed |
| [Error Handling](./error-handling.md) | Error types, handling strategies | Completed |
| [Quality Guidelines](./quality-guidelines.md) | Code standards, forbidden patterns | Completed |
| [Logging Guidelines](./logging-guidelines.md) | Structured logging, log levels | Completed |

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## Maintenance Notes

When behavior changes, update the corresponding guideline file in the same task/PR:

1. Keep statements grounded in repository evidence (code/config/tests/docs)
2. Add or refresh concrete file-path examples
3. Keep anti-patterns tied to existing rules or existing legacy code evidence