chore(openspec): archive engineering-docs and phase-2-production-ready changes

- engineering-docs → archive/2026-03-29-engineering-docs (63/63 tasks complete)
- phase-2-production-ready → archive/2026-03-29-phase-2-production-ready (89/89 tasks complete)
- openspec/specs/ synced with all Phase 1 + Phase 2 + engineering-docs capabilities (22 specs total)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

openspec/changes/archive/2026-03-29-engineering-docs/specs/dev-environment-setup/spec.md

@@ -0,0 +1,32 @@
+## 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