feat: 添加CORS支持，优化API响应，重构工作流管理逻辑，支持本地存储设置

workflow_service/database.py

@@ -1,3 +1,4 @@
+from datetime import datetime
 import aiosqlite
 import json
 import re
@@ -20,23 +21,28 @@ async def init_db():
   print(f"数据库 '{DATABASE_FILE}' 已准备就绪。")
 
 async def save_workflow(name: str, workflow_json: str):
-  # 正则表达式修正为匹配更精确的版本格式 [YYYYMMDDHHMMSS]
-  version_match = re.search(r"\[(\d{14})\]$", name)
-  if not version_match:
-    raise ValueError("Workflow name must have a version suffix like [YYYYMMDDHHMMSS]")
-  version = version_match.group(1)
-  base_name = re.sub(r"\s*\[\d{14}\]$", "", name).strip()
+  version = datetime.now().strftime("%Y%m%d%H%M%S")
   async with aiosqlite.connect(DATABASE_FILE) as db:
     await db.execute(
       "INSERT OR REPLACE INTO workflows (name, base_name, version, workflow_json) VALUES (?, ?, ?, ?)",
-      (name, base_name, version, workflow_json)
+      (f"{name} [{version}]", name, version, workflow_json)
     )
     await db.commit()
 
 async def get_all_workflows() -> list[dict]:
   async with aiosqlite.connect(DATABASE_FILE) as db:
     db.row_factory = aiosqlite.Row
-    cursor = await db.execute("SELECT name, workflow_json FROM workflows")
+    # 按 base_name 分组，获取每个基础名称的最新版本记录
+    cursor = await db.execute("""
+      SELECT w1.name, w1.workflow_json, w1.base_name, w1.version
+      FROM workflows w1
+      INNER JOIN (
+        SELECT base_name, MAX(version) as max_version
+        FROM workflows
+        GROUP BY base_name
+      ) w2 ON w1.base_name = w2.base_name AND w1.version = w2.max_version
+      ORDER BY w1.base_name
+    """)
     rows = await cursor.fetchall()
     return [{"name": row["name"], "workflow": json.loads(row["workflow_json"])} for row in rows]