chore: update gitignore; feat: 新增customer_agent业务模块与api路由

tests/test_customer_agent_config.py

@@ -0,0 +1,30 @@
+import unittest
+from unittest.mock import AsyncMock
+
+from service.customer_agent.config import DatabaseConfigProvider
+
+
+class ConfigProviderTests(unittest.IsolatedAsyncioTestCase):
+    async def test_reads_sys_config_value_and_uses_default_when_missing(self):
+        repo = AsyncMock()
+        repo.get_value.side_effect = ["120", "fallback"]
+
+        class SessionContext:
+            async def __aenter__(self):
+                return object()
+
+            async def __aexit__(self, *args):
+                pass
+
+        provider = DatabaseConfigProvider(
+            repo_factory=lambda session: repo,
+            session_factory=lambda: SessionContext(),
+        )
+
+        self.assertEqual(await provider.get("agent.customer.session.ttl", "60"), "120")
+        self.assertEqual(await provider.get("missing", "fallback"), "fallback")
+        self.assertEqual(repo.get_value.await_count, 2)
+
+
+if __name__ == "__main__":
+    unittest.main()