feat: lite deep researcher implementation

.vscode/launch.json

@@ -0,0 +1,38 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Python: 当前文件",
+            "type": "debugpy",
+            "request": "launch",
+            "program": "${file}",
+            "console": "integratedTerminal",
+            "justMyCode": true
+        },
+        {
+            "name": "Python: main.py",
+            "type": "debugpy",
+            "request": "launch",
+            "program": "${workspaceFolder}/main.py",
+            "console": "integratedTerminal",
+            "justMyCode": false,
+            "env": {
+                "PYTHONPATH": "${workspaceFolder}"
+            },
+            "args": [
+                "--debug", "--max_plan_iterations", "1", "--max_step_num", "3"
+            ]
+        },
+        {
+            "name": "Python: llm.py",
+            "type": "debugpy",
+            "request": "launch",
+            "program": "${workspaceFolder}/src/llms/llm.py",
+            "console": "integratedTerminal",
+            "justMyCode": true,
+            "env": {
+                "PYTHONPATH": "${workspaceFolder}"
+            }
+        }
+    ]
+}