fix(auth): handle list response from sql_select in dependencies_v3

- Check if api_key_results is a list before calling .get()
- Prevents 500 AttributeError on machine auth verification

app/routers/dependencies_v3.py

@@ -34,7 +34,10 @@ def get_account_context_optional(
     # This identifies the script/app, regardless of the user/account context.
     if x_aether_api_key:
         sql = "SELECT * FROM api_key WHERE (public_key = :key OR secret_key = :key) LIMIT 1"
-        if api_key_rec := sql_select(sql=sql, data={'key': x_aether_api_key}):
+        if api_key_results := sql_select(sql=sql, data={'key': x_aether_api_key}):
+            # sql_select returns a list when raw SQL is used
+            api_key_rec = api_key_results[0] if isinstance(api_key_results, list) else api_key_results
+            
             if api_key_rec.get('enable'):
                 now = datetime.now()
                 enable_from = api_key_rec.get('enable_from')