Update app.py

app.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 """
-MedGenesis AI – Streamlit front‑end (v3)
+MedGenesis AI – Streamlit front-end (v3)
 --------------------------------------
 Supports **OpenAI** and **Gemini** engines and the enriched backend
 payload introduced in orchestrator v3:
@@ -11,7 +11,7 @@ Tabs:
 """
 
 ##############################################################################
-# Std‑lib / third‑party
+# Std-lib / third-party
 ##############################################################################
 import os
 import pathlib
@@ -25,7 +25,7 @@ from fpdf import FPDF
 from streamlit_agraph import agraph
 
 ##############################################################################
-# Internal helpers
+# Internal helpers
 ##############################################################################
 from mcp.orchestrator import orchestrate_search, answer_ai_question
 from mcp.workspace import get_workspace, save_query
@@ -47,11 +47,11 @@ ROOT = Path(__file__).parent
 LOGO = ROOT / "assets" / "logo.png"
 
 ##############################################################################
-# Utility helpers
+# Utility helpers
 ##############################################################################
 
 def _latin1_safe(txt: str) -> str:
-    """Coerce UTF‑8 → Latin‑1 with replacement (for FPDF)."""
+    """Coerce UTF-8 → Latin-1 with replacement (for FPDF)."""
     return txt.encode("latin-1", "replace").decode("latin-1")
 
 
@@ -66,9 +66,7 @@ def _pdf(papers: list[dict]) -> bytes:
         pdf.set_font("Helvetica", "B", 11)
         pdf.multi_cell(0, 7, _latin1_safe(f"{i}. {p.get('title','')}"))
         pdf.set_font("Helvetica", "", 9)
-        body = f"{p.get('authors','')}
-{p.get('summary','')}
-{p.get('link','')}\n"
+        body = f"{p.get('authors','')}\n{p.get('summary','')}\n{p.get('link','')}\n"
         pdf.multi_cell(0, 6, _latin1_safe(body))
         pdf.ln(1)
     return pdf.output(dest="S").encode("latin-1", "replace")
@@ -86,13 +84,13 @@ def _workspace_sidebar():
                 st.write(item['result']['ai_summary'])
 
 ##############################################################################
-# Main UI renderer
+# Main UI renderer
 ##############################################################################
 
 def render_ui():
     st.set_page_config("MedGenesis AI", layout="wide")
 
-    # Session‑state defaults
+    # Session-state defaults
     defaults = dict(
         query_result=None,
         followup_input="",
@@ -112,7 +110,7 @@ def render_ui():
             st.image(str(LOGO), width=105)
     with col2:
         st.markdown("## 🧬 **MedGenesis AI**")
-        st.caption("Multi‑source biomedical assistant · OpenAI / Gemini")
+        st.caption("Multi-source biomedical assistant · OpenAI / Gemini")
 
     # Controls
     engine = st.radio("LLM engine", ["openai", "gemini"], horizontal=True)
@@ -197,7 +195,7 @@ def render_ui():
         st.header("Clinical trials")
         trials = res['clinical_trials']
         if not trials:
-            st.info("No trials returned (rate‑limited or none found).")
+            st.info("No trials returned (rate-limited or none found).")
         for t in trials:
             st.markdown(f"**{t.get('nctId','')}** – {t.get('briefTitle','')}  Phase {t.get('phase','?')} | Status {t.get('status','?')}")
 
@@ -230,9 +228,9 @@ def render_ui():
         if years:
             st.plotly_chart(px.histogram(years, nbins=12, title="Publication Year"))
 
-    # Follow‑up QA
+    # Follow-up QA
     st.markdown("---")
-    st.text_input("Ask follow‑up question:", key="followup_input")
+    st.text_input("Ask follow-up question:", key="followup_input")
 
     def _on_ask():
         q = st.session_state.followup_input
@@ -248,7 +246,7 @@ def render_ui():
         st.write(st.session_state.followup_response)
 
 ##############################################################################
-# Entrypoint
+# Entrypoint
 ##############################################################################
 if __name__ == "__main__":
-    render_ui()
+    render_ui()