scores 主键改用 UUID v7

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tushare/src/api.py

@@ -102,7 +102,7 @@ def list_scores(
 
 
 @app.get("/api/v1/scores/{score_id}")
-def get_score(score_id: int):
+def get_score(score_id: str):
     conn = storage._get_conn()
     try:
         with conn.cursor() as cur:

tushare/src/storage.py

@@ -38,7 +38,7 @@ def init_db(db_url: str = DEFAULT_DB_URL):
             """)
             cur.execute("""
                 CREATE TABLE IF NOT EXISTS scores (
-                    id          INTEGER GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
+                    id          UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY,
                     ts_code     TEXT NOT NULL,
                     trade_date  TEXT NOT NULL,
                     close       REAL,