feat: 完成input_context节点

uv.lock

@@ -551,14 +551,18 @@ source = { virtual = "." }
 dependencies = [
     { name = "langchain-openai" },
     { name = "langgraph" },
+    { name = "pydantic" },
     { name = "python-dotenv" },
+    { name = "typesafe-sdk" },
 ]
 
 [package.metadata]
 requires-dist = [
     { name = "langchain-openai", specifier = ">=1.6.2" },
     { name = "langgraph", specifier = ">=1.2.12" },
+    { name = "pydantic", specifier = ">=2.13.5,<3" },
     { name = "python-dotenv", specifier = ">=1.2.3" },
+    { name = "typesafe-sdk", specifier = ">=0.7.1" },
 ]
 
 [[package]]
@@ -1114,6 +1118,22 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/19/97/56608b2249fe206a67cd573bc93cd9896e1efb9e98bce9c163bcdc704b88/truststore-0.10.4-py3-none-any.whl", hash = "sha256:adaeaecf1cbb5f4de3b1959b42d41f6fab57b2b1666adb59e89cb0b53361d981", size = 18660, upload-time = "2025-08-12T18:49:01.46Z" },
 ]
 
+[[package]]
+name = "typesafe-sdk"
+version = "0.7.1"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "httpx2" },
+    { name = "pydantic" },
+    { name = "pydantic-core" },
+    { name = "tenacity" },
+    { name = "typing-extensions" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/dc/d4/14d9a00c759c126c814f7cfc0b2a760768214cda0708a9af49577b321ee3/typesafe_sdk-0.7.1.tar.gz", hash = "sha256:495ce9d81733b4f95edcb156e95042a7ec4bfd59972a1150ffa8ce1e11f85a54", size = 23062, upload-time = "2026-09-21T15:57:53.579Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/75/72/7e57648d27e45260b04762dd2393a81604b516a282fc5efe94cdf90ab971/typesafe_sdk-0.7.1-py3-none-any.whl", hash = "sha256:9d04eee13b5f64bbbe6f8e96cf40e3f39ca4efc934a1f4f39490cb9a43e9d2ad", size = 36366, upload-time = "2026-09-21T15:57:52.314Z" },
+]
+
 [[package]]
 name = "typing-extensions"
 version = "4.16.0"