fix(core): resolve local client url redirects and stabilize dev environment

- enforce localhost:5174 for wheel campaign client URL in local development
- lock vite dev server ports using strictPort on admin (5173) and client (5174)
- sanitize .env.example and remove hardcoded staging domain
- configure root dev orchestration and docker multi-stage build context

apps/client/Dockerfile

@@ -9,22 +9,14 @@ WORKDIR /app
 COPY . .
 
 RUN pnpm install --frozen-lockfile
+RUN pnpm --filter @lucky-wheel/api exec prisma generate
+RUN pnpm run build:types
 RUN pnpm --filter @lucky-wheel/client build
 
 FROM nginx:alpine
 
 COPY --from=builder /app/apps/client/dist /usr/share/nginx/html
-
-# Configure Nginx for Single Page Application
-RUN echo 'server { \
-    listen 80; \
-    server_name localhost; \
-    location / { \
-        root /usr/share/nginx/html; \
-        index index.html index.htm; \
-        try_files $uri $uri/ /index.html; \
-    } \
-}' > /etc/nginx/conf.d/default.conf
+COPY apps/client/nginx.conf /etc/nginx/conf.d/default.conf
 
 EXPOSE 80