feat: Add Docker support for client service with Nginx configuration and update README for setup instructions

Author: thiger7

README.md

@@ -43,6 +43,33 @@
 ### 保守
 - **Renovate** - 依存関係の自動更新
 
+## セットアップ
+
+### Docker Compose (推奨)
+
+```bash
+# 起動
+docker compose up --build
+
+# アクセス
+# - フロントエンド: http://localhost:3000
+# - バックエンド API: http://localhost:8000
+```
+
+### ローカル開発
+
+```bash
+# フロントエンド
+cd client
+bun install
+bun dev
+
+# バックエンド
+cd backend
+pip install -r requirements.txt
+make dev
+```
+
 ## エフェクト一覧
 
 | カテゴリ | エフェクト |

client/Dockerfile

@@ -0,0 +1,13 @@
+# Build stage
+FROM oven/bun:1-alpine AS build
+WORKDIR /app
+COPY package.json bun.lock ./
+RUN bun install --frozen-lockfile
+COPY . .
+RUN bun run build
+
+# Production stage
+FROM nginx:alpine
+COPY --from=build /app/dist /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+EXPOSE 80

client/nginx.conf

@@ -0,0 +1,24 @@
+server {
+    listen 80;
+    server_name localhost;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # SPA routing
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    # API proxy
+    location /api/ {
+        proxy_pass http://backend:8000/;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+    }
+
+    # Cache static assets
+    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2)$ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+}

compose.yaml

@@ -1,4 +1,13 @@
 services:
+  client:
+    build:
+      context: ./client
+      dockerfile: Dockerfile
+    ports:
+      - "3000:80"
+    depends_on:
+      - backend
+
   backend:
     build:
       context: ./backend