diff --git a/Dockerfile b/Dockerfile
index c52f1ab3..edc6addb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,13 +1,23 @@
 # Build stage
-FROM python:3.11-slim as builder
+FROM python:3.11-slim AS builder
 
 WORKDIR /app
 
+# Install Rust and required build dependencies
+RUN apt-get update && apt-get install -y \
+    curl \
+    build-essential \
+    pkg-config \
+    && rm -rf /var/lib/apt/lists/* \
+    && curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y \
+    && . $HOME/.cargo/env
+
 # Copy only requirements files first to leverage Docker cache
 COPY requirements.txt .
 COPY lightrag/api/requirements.txt ./lightrag/api/
 
 # Install dependencies
+ENV PATH="/root/.cargo/bin:${PATH}"
 RUN pip install --user --no-cache-dir -r requirements.txt
 RUN pip install --user --no-cache-dir -r lightrag/api/requirements.txt
 
@@ -28,6 +38,10 @@ ENV PATH=/root/.local/bin:$PATH
 # Create necessary directories
 RUN mkdir -p /app/data/rag_storage /app/data/inputs
 
+# Docker data directories
+ENV WORKING_DIR=/app/data/rag_storage
+ENV INPUT_DIR=/app/data/inputs
+
 # Expose the default port
 EXPOSE 9621
 
diff --git a/README-zh.md b/README-zh.md
new file mode 100644
index 00000000..e69de29b
diff --git a/lightrag/api/requirements.txt b/lightrag/api/requirements.txt
index 0e8e246b..afd76f5b 100644
--- a/lightrag/api/requirements.txt
+++ b/lightrag/api/requirements.txt
@@ -3,6 +3,7 @@ ascii_colors
 asyncpg
 distro
 fastapi
+graspologic>=3.4.1
 httpcore
 httpx
 jiter
diff --git a/lightrag/lightrag.py b/lightrag/lightrag.py
index a466e572..a8b11549 100644
--- a/lightrag/lightrag.py
+++ b/lightrag/lightrag.py
@@ -1843,9 +1843,10 @@ class LightRAG:
         """
         try:
             # 1. Get current entity information
-            node_data = await self.chunk_entity_relation_graph.get_node(entity_name)
-            if not node_data:
+            node_exists = await self.chunk_entity_relation_graph.has_node(entity_name)
+            if not node_exists:
                 raise ValueError(f"Entity '{entity_name}' does not exist")
+            node_data = await self.chunk_entity_relation_graph.get_node(entity_name)
 
             # Check if entity is being renamed
             new_entity_name = updated_data.get("entity_name", entity_name)
@@ -1858,7 +1859,7 @@ class LightRAG:
                         "Entity renaming is not allowed. Set allow_rename=True to enable this feature"
                     )
 
-                existing_node = await self.chunk_entity_relation_graph.get_node(
+                existing_node = await self.chunk_entity_relation_graph.has_node(
                     new_entity_name
                 )
                 if existing_node:
@@ -2040,14 +2041,16 @@ class LightRAG:
         """
         try:
             # 1. Get current relation information
-            edge_data = await self.chunk_entity_relation_graph.get_edge(
+            edge_exists = await self.chunk_entity_relation_graph.has_edge(
                 source_entity, target_entity
             )
-            if not edge_data:
+            if not edge_exists:
                 raise ValueError(
                     f"Relation from '{source_entity}' to '{target_entity}' does not exist"
                 )
-
+            edge_data = await self.chunk_entity_relation_graph.get_edge(
+                source_entity, target_entity
+            )
             # Important: First delete the old relation record from the vector database
             old_relation_id = compute_mdhash_id(
                 source_entity + target_entity, prefix="rel-"
@@ -2156,7 +2159,7 @@ class LightRAG:
         """
         try:
             # Check if entity already exists
-            existing_node = await self.chunk_entity_relation_graph.get_node(entity_name)
+            existing_node = await self.chunk_entity_relation_graph.has_node(entity_name)
             if existing_node:
                 raise ValueError(f"Entity '{entity_name}' already exists")
 
@@ -2250,7 +2253,7 @@ class LightRAG:
                 raise ValueError(f"Target entity '{target_entity}' does not exist")
 
             # Check if relation already exists
-            existing_edge = await self.chunk_entity_relation_graph.get_edge(
+            existing_edge = await self.chunk_entity_relation_graph.has_edge(
                 source_entity, target_entity
             )
             if existing_edge:
@@ -2383,19 +2386,22 @@ class LightRAG:
             # 1. Check if all source entities exist
             source_entities_data = {}
             for entity_name in source_entities:
-                node_data = await self.chunk_entity_relation_graph.get_node(entity_name)
-                if not node_data:
+                node_exists = await self.chunk_entity_relation_graph.has_node(
+                    entity_name
+                )
+                if not node_exists:
                     raise ValueError(f"Source entity '{entity_name}' does not exist")
+                node_data = await self.chunk_entity_relation_graph.get_node(entity_name)
                 source_entities_data[entity_name] = node_data
 
             # 2. Check if target entity exists and get its data if it does
             target_exists = await self.chunk_entity_relation_graph.has_node(
                 target_entity
             )
-            target_entity_data = {}
+            existing_target_entity_data = {}
             if target_exists:
-                target_entity_data = await self.chunk_entity_relation_graph.get_node(
-                    target_entity
+                existing_target_entity_data = (
+                    await self.chunk_entity_relation_graph.get_node(target_entity)
                 )
                 logger.info(
                     f"Target entity '{target_entity}' already exists, will merge data"
@@ -2404,7 +2410,7 @@ class LightRAG:
             # 3. Merge entity data
             merged_entity_data = self._merge_entity_attributes(
                 list(source_entities_data.values())
-                + ([target_entity_data] if target_exists else []),
+                + ([existing_target_entity_data] if target_exists else []),
                 merge_strategy,
             )
 
diff --git a/lightrag/llm/openai.py b/lightrag/llm/openai.py
index 70aa0ceb..555fea90 100644
--- a/lightrag/llm/openai.py
+++ b/lightrag/llm/openai.py
@@ -123,18 +123,21 @@ async def openai_complete_if_cache(
 
         async def inner():
             try:
+                _content = ""
                 async for chunk in response:
                     content = chunk.choices[0].delta.content
                     if content is None:
                         continue
                     if r"\u" in content:
                         content = safe_unicode_decode(content.encode("utf-8"))
-                    yield content
+                    _content += content
+                return _content
             except Exception as e:
                 logger.error(f"Error in stream response: {str(e)}")
                 raise
 
-        return inner()
+        response_content = await inner()
+        return response_content
 
     else:
         if (
diff --git a/lightrag_webui/env.development.smaple b/lightrag_webui/env.development.smaple
new file mode 100644
index 00000000..080cf95f
--- /dev/null
+++ b/lightrag_webui/env.development.smaple
@@ -0,0 +1,2 @@
+# Development environment configuration
+VITE_BACKEND_URL=/api
diff --git a/lightrag_webui/env.local.sample b/lightrag_webui/env.local.sample
new file mode 100644
index 00000000..0f2c293c
--- /dev/null
+++ b/lightrag_webui/env.local.sample
@@ -0,0 +1,3 @@
+VITE_BACKEND_URL=http://localhost:9621
+VITE_API_PROXY=true
+VITE_API_ENDPOINTS=/api,/documents,/graphs,/graph,/health,/query,/docs,/openapi.json