feat: dockerize full stack (web + api + postgres)

- Multi-stage Dockerfiles for API (NestJS, prisma migrate on start) and web (Vite + nginx reverse proxy)
- docker-compose.yml orchestrating db/api/web with healthcheck and persistent volumes
- nginx proxies /api and /avatars to API; web built with relative API URL
- scripts/docker-up.sh: ExFAT-safe wrapper that strips macOS AppleDouble (._*) sidecars before build
- Conditionally register GoogleStrategy only when GOOGLE_CLIENT_ID is set
- Fix unused-variable TS errors blocking production build

apps/web/.dockerignore

@@ -0,0 +1,10 @@
+node_modules
+dist
+.git
+.gitignore
+.env
+.env.local
+*.log
+.DS_Store
+._*
+.tsbuildinfo