Update app.py

app.py

@@ -276,16 +276,21 @@ def run_real_prediction(file):
     return summary, bar, dense, gauge, status
 
 
-def download_template_real():
+def download_sample_genome():
+    import tempfile
+    import numpy as np
     if REAL_MODEL_READY:
         cols = REAL_FEATURES
     else:
         cols = EXPLORE_GENES
-    path = "/tmp/genome_matrix_template.csv"
-    pd.DataFrame([[0] * len(cols)], columns=cols, index=["your_genome_id"]).to_csv(path)
+    np.random.seed(42)  # reproducible
+    row = {c: np.random.randint(0, 2) for c in cols}
+    df = pd.DataFrame([row], index=["sample_genome"])
+    fd, path = tempfile.mkstemp(suffix=".csv")
+    os.close(fd)
+    df.to_csv(path)
     return path
 
-
 # ----------------------------------------------------------------------
 # Explore tab logic (10-gene sandbox, explicitly the weaker panel)
 # ----------------------------------------------------------------------