Update app.py

app.py

@@ -11,7 +11,7 @@ app = marimo.App()
 @app.cell
 def _(mo):
     csv_upload = mo.ui.file(label="Upload Keyword CSV (1 column)")
-    # pull secrets from env
+    # pull secrets from env (set in HF Space Secrets)
     api_key = os.environ.get("GOOGLE_API_KEY", "")
     cse_id  = os.environ.get("GOOGLE_CSE_ID", "")
     country = mo.ui.text(label="Country Code (e.g. UK)", value="UK")
@@ -62,8 +62,6 @@ def _(keywords, api_key, cse_id, country, language, database, serp_table, timest
 
         movement = compare_clusters(clusters1, clusters2)
         return fig1, fig2, movement
-
-    # Explicit fallback
     return None, None, None
 
 # 5) Display the two network graphs
@@ -72,7 +70,7 @@ def _(fig1, fig2):
     if fig1 and fig2:
         display(fig1)
         display(fig2)
-    # no return needed here
+    return None
 
 # 6) Show the movement table
 @app.cell