feat：flow2api初版

src/services/proxy_manager.py

@@ -0,0 +1,25 @@
+"""Proxy management module"""
+from typing import Optional
+from ..core.database import Database
+from ..core.models import ProxyConfig
+
+class ProxyManager:
+    """Proxy configuration manager"""
+
+    def __init__(self, db: Database):
+        self.db = db
+
+    async def get_proxy_url(self) -> Optional[str]:
+        """Get proxy URL if enabled, otherwise return None"""
+        config = await self.db.get_proxy_config()
+        if config and config.enabled and config.proxy_url:
+            return config.proxy_url
+        return None
+
+    async def update_proxy_config(self, enabled: bool, proxy_url: Optional[str]):
+        """Update proxy configuration"""
+        await self.db.update_proxy_config(enabled, proxy_url)
+
+    async def get_proxy_config(self) -> ProxyConfig:
+        """Get proxy configuration"""
+        return await self.db.get_proxy_config()