## ADDED Requirements

### Requirement: Development environment setup guide
The system SHALL include a document (`docs/engineering/07-dev-setup.md`) that takes a new engineer from zero to a fully running local stack in under 30 minutes, with no prior knowledge of the project assumed.

#### Scenario: Prerequisites listed completely
- **WHEN** a new engineer reads 07-dev-setup.md
- **THEN** they SHALL find a complete prerequisites list: Node.js 18+, Docker Desktop, Git, a PostgreSQL client (optional), and links to install each — with no undocumented dependencies

#### Scenario: Repository clone and setup steps complete
- **WHEN** a new engineer follows the clone and setup steps
- **THEN** they SHALL be able to: clone the repo, copy `.env.example` to `.env`, run `npm install`, and have all dependencies installed with zero manual configuration

#### Scenario: Docker Compose local stack starts successfully
- **WHEN** a new engineer runs `docker-compose up -d`
- **THEN** all services (PostgreSQL, Redis, API server) SHALL start, migrations SHALL run automatically, and the guide SHALL show how to verify each service is healthy

#### Scenario: Smoke test confirms working stack
- **WHEN** a new engineer follows the smoke test section
- **THEN** they SHALL run a curl command to POST /oauth2/token with the seed credentials and receive a valid JWT — confirming the full stack is operational

#### Scenario: Common setup errors documented
- **WHEN** a new engineer encounters a setup error
- **THEN** the guide SHALL include a troubleshooting section covering the 5 most common errors: port already in use, migration failure, Node version mismatch, Docker not running, and missing .env variables

#### Scenario: Running tests locally documented
- **WHEN** a new engineer wants to run the test suite
- **THEN** the guide SHALL show: `npm test` (unit tests only, no services needed), `npm run test:integration` (requires Docker stack), and how to run a single test file

#### Scenario: Web dashboard local development documented
- **WHEN** a new engineer wants to run the web dashboard
- **THEN** the guide SHALL show how to start the Vite dev server (`npm run dev` in `dashboard/`) and which port it runs on, and confirm it connects to the local API server
