Update app.py

app.py

@@ -44,7 +44,7 @@ class ConversationMemory:
         self.context_graph = {}
         self.session_data = {}
     
-    def get_relevant_context(self, query: str, hope: limit = 3) -> List[Dict]:
+    def get_relevant_context(self, query: str, limit: int = 3) -> List[Dict]:
         relevant = []
         query_lower = query.lower()
         
@@ -267,7 +267,7 @@ def clear_code_inputs():
 
 def create_nexus_interface():
     with gr.Blocks(
-        theme=gr.themes.Ocean(),
+        theme=gr.themes.Soft(),
         title="Nexus AI Assistant",
         css="""
         .gradio-container {