todo List 작성 api 추가

backend/app/main.py

@@ -10,6 +10,8 @@ from .db import (
     update_recommendation,
     # 시뮬레이션 관련
     get_best_picks, get_simulation_runs, get_simulation_candidates,
+    # todos
+    get_all_todos, create_todo, update_todo, delete_todo, delete_done_todos,
 )
 from .recommender import recommend_numbers, recommend_with_heatmap
 from .collector import sync_latest, sync_ensure_all
@@ -568,3 +570,54 @@ def api_recommend_batch_save(body: BatchSave):
 @app.get("/api/version")
 def version():
     return {"version": os.getenv("APP_VERSION", "dev")}
+
+
+# ── Todos API ─────────────────────────────────────────────────────────────────
+
+class TodoCreate(BaseModel):
+    title: str
+    description: Optional[str] = None
+    status: str = "todo"
+
+
+class TodoUpdate(BaseModel):
+    title: Optional[str] = None
+    description: Optional[str] = None
+    status: Optional[str] = None
+
+
+@app.get("/api/todos")
+def api_todos_list():
+    return get_all_todos()
+
+
+@app.post("/api/todos", status_code=201)
+def api_todos_create(body: TodoCreate):
+    if body.status not in ("todo", "in_progress", "done"):
+        raise HTTPException(status_code=422, detail="status must be todo | in_progress | done")
+    return create_todo(body.title, body.description, body.status)
+
+
+# ⚠️ /done 라우트를 /{todo_id} 보다 먼저 등록해야 done이 id로 매칭되지 않음
+@app.delete("/api/todos/done")
+def api_todos_delete_done():
+    deleted = delete_done_todos()
+    return {"deleted": deleted}
+
+
+@app.put("/api/todos/{todo_id}")
+def api_todos_update(todo_id: str, body: TodoUpdate):
+    if body.status is not None and body.status not in ("todo", "in_progress", "done"):
+        raise HTTPException(status_code=422, detail="status must be todo | in_progress | done")
+    updated = update_todo(todo_id, body.model_dump(exclude_none=True))
+    if updated is None:
+        raise HTTPException(status_code=404, detail="Todo not found")
+    return updated
+
+
+@app.delete("/api/todos/{todo_id}")
+def api_todos_delete(todo_id: str):
+    ok = delete_todo(todo_id)
+    if not ok:
+        raise HTTPException(status_code=404, detail="Todo not found")
+    return {"ok": True}