Update app.py

app.py

@@ -422,7 +422,7 @@ def inject_base_url(url: str) -> str:
     return f"{BASE_URL}{url}"
 
 # Our default diagram, containing the "click" lines with /?q=...
-DEFAULT_MERMAID = """
+DEFAULT_MERMAID_old = """
 flowchart LR
     U((User 😎)) -- "Talk 🗣️" --> LLM[LLM Agent 🤖\\nExtract Info]
     click U "/?q=User%20😎" _self
@@ -438,6 +438,25 @@ flowchart LR
     click KG "/?q=Knowledge%20Graph%20Ontology+GAR+RAG" _self
 """
 
+DEFAULT_MERMAID = """
+flowchart LR
+    U((User 😎)) -- "Talk 🗣️" --> LLM[LLM Agent 🤖\nExtract Info]
+
+    %% Notice the two added strings: "Tooltip text" and "_blank"
+    click U "/?q=User%20😎" "Open 'User 😎' in new window" "_blank"
+    click LLM "/?q=LLM%20Agent%20Extract%20Info" "Open LLM Agent" "_blank"
+
+    LLM -- "Query 🔍" --> HS[Hybrid Search 🔎\nVector+NER+Lexical]
+    click HS "/?q=Hybrid%20Search%20Vector+NER+Lexical" "Open Hybrid Search" "_blank"
+
+    HS -- "Reason 🤔" --> RE[Reasoning Engine 🛠️\nNeuralNetwork+Medical]
+    click RE "/?q=Reasoning%20Engine%20NeuralNetwork+Medical" "Open Reasoning Engine" "_blank"
+
+    RE -- "Link 📡" --> KG((Knowledge Graph 📚\nOntology+GAR+RAG))
+    click KG "/?q=Knowledge%20Graph%20Ontology+GAR+RAG" "Open Knowledge Graph" "_blank"
+"""
+
+
 def main():
     st.set_page_config(page_title="Mermaid + Clickable Links with Base URL", layout="wide")