Update mtdna_backend.py

mtdna_backend.py

@@ -634,7 +634,13 @@ def load_user_usage():
         for _, row in df.iterrows():
             email = row.get("email", "").strip().lower()
             try:
-                count = int(row.get("usage_count", 0))
+                #count = int(row.get("usage_count", 0))
+                try:
+                    count = int(float(row.get("usage_count", 0)))
+                except Exception:
+                    print(f"⚠️ Invalid usage_count for {email}: {row.get('usage_count')}")
+                    count = 0
+
                 if email:
                     usage[email] = count
             except ValueError:
@@ -783,7 +789,11 @@ def save_user_usage(usage_dict):
 def increment_usage(email: str, count: int = 1):
     usage = load_user_usage()
     email_key = email.strip().lower()
-    usage[email_key] = usage.get(email_key, 0) + count
+    #usage[email_key] = usage.get(email_key, 0) + count
+    current = usage.get(email_key, 0)
+    new_value = current + count
+    usage[email_key] = max(current, new_value)  # ✅ Prevent overwrite with lower
+    print(f"🧪 increment_usage saving: {email_key=} {current=} + {count=} => {usage[email_key]=}")
     save_user_usage(usage)
     return usage[email_key]