fix(FN-002): address Dockerfile build order, base images, .dockerignore, docs

docs/README.md

@@ -11,5 +11,5 @@ This directory contains architecture, development, and deployment documentation
 ## Quick Links
 
 - Root README — to be added in Step 6
-- Deploy Skeleton — to be added in Step 5
+- [Deploy Skeleton](../deploy/README.md)
 - [Project Brief](project-brief.md) — Original product brief and confirmed stack *(FN-001)*

docs/development.md

@@ -55,11 +55,9 @@ pnpm dev        # Runs frontend and backend in parallel
 
 ### With Docker Compose
 
-> Docker Compose files will be added in Step 5. Once created, run:
->
-> ```bash
-> docker compose up --build -d
-> ```
+```bash
+docker compose up --build -d
+```
 
 ## Testing
 
@@ -129,8 +127,8 @@ pnpm build
 │   ├── web/          # Vite React TypeScript frontend
 │   └── api/          # FastAPI Python backend
 ├── docs/             # Documentation
-├── deploy/           # Deployment skeleton files (added in Step 5)
-├── docker-compose.yml (added in Step 5)
+├── deploy/           # Deployment skeleton files
+├── docker-compose.yml
 └── package.json      # Root monorepo scripts
 ```