add login with oskeychain

src/lib/types.ts

@@ -117,3 +117,9 @@ export interface ConflictFile {
   ours_size: number | null;
   theirs_size: number | null;
 }
+
+export interface StoredCredential {
+  username: string;
+  password: string;
+  expiresAt?: string | null;
+}