Redesign settings from scratch

frontend/src/core/api/securityApi.ts

@@ -22,4 +22,15 @@ export async function changePassword(
     if (!res.ok) throw new Error("Failed to change password");
 }
 
+export async function deleteAccount(token: string): Promise<void> {
+    const res = await fetch(`${API_BASE_URL}/account/delete`, {
+        method: "POST",
+        headers: getAuthHeaders(token)
+    });
+    if (!res.ok) {
+        const error = await res.json().catch(() => ({ detail: "Failed to delete account" }));
+        throw new Error(error.detail || "Failed to delete account");
+    }
+}
+