Add docker-compose support with data persistence

- Add docker-compose.yml for easy deployment
- Configure DB_PATH environment variable for flexible database location
- Mount ./data volume for data persistence across container restarts

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

database.py

@@ -1,9 +1,10 @@
 import sqlite3
+import os
 from datetime import datetime, date
 from typing import List, Optional
 from pydantic import BaseModel
 
-DB_NAME = "news.db"
+DB_NAME = os.environ.get("DB_PATH", "news.db")
 
 class Article(BaseModel):
     title: str

docker-compose.yml

@@ -1,11 +1,12 @@
-version: '3.8'
-
 services:
   japan-news:
     build: .
-    container_name: japan-news-collector
+    container_name: japan-news
     ports:
-      - "8000:8000"
+      - "8001:8000"
     volumes:
-      - ./news.db:/app/news.db
+      - ./data:/app/data
+    environment:
+      - TZ=Asia/Tokyo
+      - DB_PATH=/app/data/news.db
     restart: unless-stopped