feat: 添加任务历史记录、持久化会话、WebSocket支持和数据持久化功能

tests/test_storage.py

@@ -0,0 +1,47 @@
+import pytest
+from app.services.storage import JSONStorage
+from pathlib import Path
+
+
+class TestJSONStorage:
+    def test_save_and_load(self, temp_dir):
+        storage = JSONStorage()
+        storage.data_dir = temp_dir
+        
+        data = {"name": "test", "value": 123}
+        storage.save("test", data)
+        
+        loaded = storage.load("test")
+        assert loaded == data
+    
+    def test_load_nonexistent(self, temp_dir):
+        storage = JSONStorage()
+        storage.data_dir = temp_dir
+        
+        result = storage.load("nonexistent", default={"default": True})
+        assert result == {"default": True}
+    
+    def test_save_list(self, temp_dir):
+        storage = JSONStorage()
+        storage.data_dir = temp_dir
+        
+        data = [1, 2, 3, "test"]
+        storage.save("list", data)
+        
+        loaded = storage.load("list")
+        assert loaded == data
+    
+    def test_save_nested_data(self, temp_dir):
+        storage = JSONStorage()
+        storage.data_dir = temp_dir
+        
+        data = {
+            "tasks": [
+                {"id": "1", "status": "completed"},
+                {"id": "2", "status": "running"}
+            ]
+        }
+        storage.save("nested", data)
+        
+        loaded = storage.load("nested")
+        assert loaded == data