Wrap app tokens and password of User in secret type

crates/store/src/secret.rs

@@ -0,0 +1,12 @@
+use derive_more::{AsRef, From};
+use serde::{Deserialize, Serialize};
+
+/// Wrapper type to prevent secrets from accidentally getting leaked into traces
+#[derive(From, Clone, Deserialize, Serialize, AsRef)]
+pub struct Secret<T>(pub T);
+
+impl<T> std::fmt::Debug for Secret<T> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_str("Secret")
+    }
+}