fix(music-lab): market API 타입 강화·ANTHROPIC_API_KEY call-time·HTTP 레이어 테스트 추가

music-lab/app/main.py

@@ -2,8 +2,8 @@ import json
 import os
 import shutil
 import uuid
-from typing import List, Optional
-from fastapi import FastAPI, HTTPException, BackgroundTasks
+from typing import Any, Dict, List, Optional
+from fastapi import FastAPI, HTTPException, BackgroundTasks, Query
 from fastapi.middleware.cors import CORSMiddleware
 from pydantic import BaseModel
 
@@ -819,7 +819,7 @@ def remove_revenue(record_id: int):
 # ── 시장 조사 API ─────────────────────────────────────────────────────────────
 
 class MarketIngestRequest(BaseModel):
-    trends: list
+    trends: List[Dict[str, Any]]
     report_date: str = ""
 
 
@@ -837,7 +837,7 @@ def list_market_trends(
     country: Optional[str] = None,
     genre: Optional[str] = None,
     source: Optional[str] = None,
-    days: int = 7,
+    days: int = Query(7, ge=1),
 ):
     return {"trends": _get_market_trends(country, genre, source, days)}