chroe: remove unused code and suppress warnings

src/auth.rs

@@ -23,7 +23,11 @@ pub struct Claims {
 }
 
 /// AuthUser extractor - provides (user_id, email) tuple
-pub struct AuthUser(pub String, pub String);
+pub struct AuthUser(
+    pub String, // user_id
+    #[allow(dead_code)] // email is not used in this simplified version
+    pub String, // email
+);
 
 impl FromRequestParts<Arc<Env>> for Claims {
     type Rejection = AppError;

src/models/folder.rs

@@ -30,7 +30,7 @@ impl From<Folder> for FolderResponse {
             id: folder.id,
             name: folder.name,
             revision_date: folder.updated_at,
-            object: "folder".to_string(),
+            object: default_object(),
         }
     }
 }

src/models/twofactor.rs

@@ -197,13 +197,4 @@ impl RememberTokenData {
             created_at: Utc::now().timestamp(),
         });
     }
-
-    /// Check if there are any valid (non-expired) tokens
-    pub fn has_valid_tokens(&self) -> bool {
-        let now = Utc::now().timestamp();
-        let expiration_seconds = Duration::days(REMEMBER_TOKEN_EXPIRATION_DAYS).num_seconds();
-        self.tokens
-            .iter()
-            .any(|t| now - t.created_at < expiration_seconds)
-    }
 }

src/models/user.rs

@@ -144,6 +144,7 @@ pub struct KeyData {
 pub struct PasswordOrOtpData {
     #[serde(alias = "MasterPasswordHash")]
     pub master_password_hash: Option<String>,
+    #[allow(dead_code)] // OTP verification is not implemented in this simplified version
     pub otp: Option<String>,
 }