refactor: portfolio → personal 리네이밍 + Blog/Todo 통합

- portfolio/ 디렉토리를 personal/로 리네이밍
- lotto-backend의 Blog/Todo 라우트·CRUD를 personal 서비스로 이전
- lotto-backend에서 Blog/Todo 코드 제거 (DB 테이블 스키마는 유지)
- nginx: /api/todos, /api/blog/ 라우팅을 personal로 추가
- docker-compose: portfolio → personal 서비스 변��
- deploy 스크립트: portfolio → personal 반영

데이터 마이그레이션은 배포 후 NAS에서 별도 수행 필요:
1. cp data/portfolio/portfolio.db data/personal/personal.db
2. sqlite3 data/lotto.db ".dump todos" | sqlite3 data/personal/personal.db
3. sqlite3 data/lotto.db ".dump blog_posts" | sqlite3 data/personal/personal.db

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker-compose.yml

@@ -149,10 +149,10 @@ services:
       timeout: 5s
       retries: 3
 
-  portfolio:
+  personal:
     build:
-      context: ./portfolio
-    container_name: portfolio
+      context: ./personal
+    container_name: personal
     restart: unless-stopped
     ports:
       - "18850:8000"
@@ -161,7 +161,7 @@ services:
       - PORTFOLIO_EDIT_PASSWORD=${PORTFOLIO_EDIT_PASSWORD:-}
       - CORS_ALLOW_ORIGINS=${CORS_ALLOW_ORIGINS:-http://localhost:3007,http://localhost:8080}
     volumes:
-      - ${RUNTIME_PATH:-.}/data/portfolio:/app/data
+      - ${RUNTIME_PATH:-.}/data/personal:/app/data
     healthcheck:
       test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"]
       interval: 30s