Adding the lab project

DEPLOY.md

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+# Deploy CA Lab Studio
+
+Deploy `glitch_voxel_automata_lab`, not `glitch_voxel_automata`.
+
+This app is the CA Lab Studio service:
+
+- Express API at `/api/ca/*`
+- React admin app at `/admin`
+- React viewer/recorder routes at `/view/*`
+- Postgres database via `DATABASE_URL`
+
+## Build
+
+```bash
+nvm use 20
+npm --prefix backend ci
+npm run build
+```
+
+The build creates:
+
+```txt
+backend/dist/server.js
+backend/public/admin/index.html
+backend/public/admin/assets/*
+```
+
+## Start
+
+```bash
+DATABASE_URL=postgres://... PORT=3100 npm start
+```
+
+Run migrations before starting or during release:
+
+```bash
+DATABASE_URL=postgres://... npm run migrate
+```
+
+## Docker
+
+```bash
+docker build -t ca-lab-studio .
+docker run --rm -p 3100:3100 \
+  -e DATABASE_URL=postgres://... \
+  ca-lab-studio
+```
+
+The container serves the app at:
+
+```txt
+http://localhost:3100/admin
+http://localhost:3100/view/decks/:deckId
+```