fix: resolve followup message failure after frontend tool calls

.dockerignore

@@ -1,23 +1,15 @@
-# Exclude large directories to keep build context small
-node_modules/
-.git/
-frontend/node_modules/
-frontend/dist/
-infra-cdk/node_modules/
-infra-cdk/cdk.out/
-.ruff_cache/
-__pycache__/
-*.pyc
-.pytest_cache/
-.coverage
-htmlcov/
-dist/
-build/
-*.egg-info/
-.vscode/
-.idea/
+# Default-deny the repo root and only include the runtime inputs we need.
+**
 
-# Keep only what we need for Docker builds
-!gateway/
+!.dockerignore
 !pyproject.toml
+!gateway/
+!gateway/**
 !patterns/
+!patterns/**
+!tools/
+!tools/**
+!ag_ui_langgraph/
+!ag_ui_langgraph/**
+!copilotkit/
+!copilotkit/**

ag_ui_langgraph/__init__.py

@@ -0,0 +1,35 @@
+from .agent import LangGraphAgent
+from .types import (
+    LangGraphEventTypes,
+    CustomEventNames,
+    State,
+    SchemaKeys,
+    MessageInProgress,
+    RunMetadata,
+    MessagesInProgressRecord,
+    ToolCall,
+    BaseLangGraphPlatformMessage,
+    LangGraphPlatformResultMessage,
+    LangGraphPlatformActionExecutionMessage,
+    LangGraphPlatformMessage,
+    PredictStateTool
+)
+from .endpoint import add_langgraph_fastapi_endpoint
+
+__all__ = [
+    "LangGraphAgent",
+    "LangGraphEventTypes",
+    "CustomEventNames",
+    "State",
+    "SchemaKeys",
+    "MessageInProgress",
+    "RunMetadata",
+    "MessagesInProgressRecord",
+    "ToolCall",
+    "BaseLangGraphPlatformMessage",
+    "LangGraphPlatformResultMessage",
+    "LangGraphPlatformActionExecutionMessage",
+    "LangGraphPlatformMessage",
+    "PredictStateTool",
+    "add_langgraph_fastapi_endpoint"
+]