diff --git a/offline-backend-20260512/backend/pyproject.toml b/offline-backend-20260512/backend/pyproject.toml
index d4ea5346..691e5c54 100644
--- a/offline-backend-20260512/backend/pyproject.toml
+++ b/offline-backend-20260512/backend/pyproject.toml
@@ -1,51 +1,52 @@
-[project]
-name = "deer-flow"
-version = "0.1.0"
-description = "LangGraph-based AI agent system with sandbox execution capabilities"
-readme = "README.md"
-requires-python = ">=3.12"
-dependencies = [
-    "deerflow-harness",
-    "fastapi>=0.115.0",
-    "httpx>=0.28.0",
-    "python-multipart>=0.0.26",
-    "sse-starlette>=2.1.0",
-    "uvicorn[standard]>=0.34.0",
-    "lark-oapi>=1.4.0",
-    "slack-sdk>=3.33.0",
-    "python-telegram-bot>=21.0",
-    "langgraph-sdk>=0.1.51",
-    "markdown-to-mrkdwn>=0.3.1",
-    "wecom-aibot-python-sdk>=0.1.6",
-    "dingtalk-stream>=0.24.3",
-    "bcrypt>=4.0.0",
-    "pyjwt>=2.9.0",
-    "email-validator>=2.0.0",
-    "croniter>=6.2.2",
-]
-
+[project]
+name = "deer-flow"
+version = "0.1.0"
+description = "LangGraph-based AI agent system with sandbox execution capabilities"
+readme = "README.md"
+requires-python = ">=3.12"
+dependencies = [
+    "deerflow-harness",
+    "fastapi>=0.115.0",
+    "httpx>=0.28.0",
+    "python-multipart>=0.0.26",
+    "sse-starlette>=2.1.0",
+    "uvicorn[standard]>=0.34.0",
+    "lark-oapi>=1.4.0",
+    "slack-sdk>=3.33.0",
+    "python-telegram-bot>=21.0",
+    "langgraph-sdk>=0.1.51",
+    "markdown-to-mrkdwn>=0.3.1",
+    "wecom-aibot-python-sdk>=0.1.6",
+    "dingtalk-stream>=0.24.3",
+    "bcrypt>=4.0.0",
+    "pyjwt>=2.9.0",
+    "email-validator>=2.0.0",
+    "croniter>=6.2.2",
+    "hindsight-client>=0.4.22",
+]
+
 [project.optional-dependencies]
 postgres = ["deerflow-harness[postgres]"]
 mysql = ["deerflow-harness[mysql]"]
-
-[dependency-groups]
-dev = [
-    "prompt-toolkit>=3.0.0",
-    "pytest>=9.0.3",
-    "pytest-asyncio>=1.3.0",
-    "ruff>=0.14.11",
-]
-
-[tool.pytest.ini_options]
-markers = [
-    "no_auto_user: disable the conftest autouse contextvar fixture for this test",
-]
-
-[tool.uv]
-index-url = "https://pypi.org/simple"
-
-[tool.uv.workspace]
-members = ["packages/harness"]
-
-[tool.uv.sources]
-deerflow-harness = { workspace = true }
+
+[dependency-groups]
+dev = [
+    "prompt-toolkit>=3.0.0",
+    "pytest>=9.0.3",
+    "pytest-asyncio>=1.3.0",
+    "ruff>=0.14.11",
+]
+
+[tool.pytest.ini_options]
+markers = [
+    "no_auto_user: disable the conftest autouse contextvar fixture for this test",
+]
+
+[tool.uv]
+index-url = "https://pypi.org/simple"
+
+[tool.uv.workspace]
+members = ["packages/harness"]
+
+[tool.uv.sources]
+deerflow-harness = { workspace = true }