블로그 글 작성 api 추가

backend/app/main.py

@@ -12,6 +12,8 @@ from .db import (
     get_best_picks, get_simulation_runs, get_simulation_candidates,
     # todos
     get_all_todos, create_todo, update_todo, delete_todo, delete_done_todos,
+    # blog
+    get_all_posts, create_post, update_post, delete_post,
 )
 from .recommender import recommend_numbers, recommend_with_heatmap
 from .collector import sync_latest, sync_ensure_all
@@ -621,3 +623,50 @@ def api_todos_delete(todo_id: str):
     if not ok:
         raise HTTPException(status_code=404, detail="Todo not found")
     return {"ok": True}
+
+
+# ── Blog API ──────────────────────────────────────────────────────────────────
+
+class BlogPostCreate(BaseModel):
+    title: str
+    body: str = ""
+    excerpt: str = ""
+    tags: List[str] = []
+    date: str = ""  # 빈 문자열이면 오늘 날짜 사용
+
+
+class BlogPostUpdate(BaseModel):
+    title: Optional[str] = None
+    body: Optional[str] = None
+    excerpt: Optional[str] = None
+    tags: Optional[List[str]] = None
+    date: Optional[str] = None
+
+
+@app.get("/api/blog/posts")
+def api_blog_list():
+    return {"posts": get_all_posts()}
+
+
+@app.post("/api/blog/posts", status_code=201)
+def api_blog_create(body: BlogPostCreate):
+    from datetime import date as _date
+    post_date = body.date if body.date else _date.today().isoformat()
+    post = create_post(body.title, body.body, body.excerpt, body.tags, post_date)
+    return post
+
+
+@app.put("/api/blog/posts/{post_id}")
+def api_blog_update(post_id: int, body: BlogPostUpdate):
+    updated = update_post(post_id, body.model_dump(exclude_none=True))
+    if updated is None:
+        raise HTTPException(status_code=404, detail="Post not found")
+    return updated
+
+
+@app.delete("/api/blog/posts/{post_id}")
+def api_blog_delete(post_id: int):
+    ok = delete_post(post_id)
+    if not ok:
+        raise HTTPException(status_code=404, detail="Post not found")
+    return {"ok": True}