Misleading Documentation on Pausable Feature
Documentation claims the Pausable owner can pause all state-changing actions, but the whenNotPaused modifier is applied only to the creation paths, not to cancelPayment() or settlePayment().
Description
The documentation claims that:
Pausable Owner can pause/unpause all state-changing actions.
However, in the actual implementation, the whenNotPaused modifier is applied only to the createERC20Payment() and createERC20PaymentWithTimelock() functions.
Other state-changing functions such as cancelPayment() and settlePayment() are not protected by this modifier, creating a discrepancy between the documented and actual behavior of the contract.
Users and integrators may assume that all state-changing functions are disabled when the contract is paused, potentially leading to unexpected behaviors or incorrect assumptions about the system's security posture during emergency pauses.
Recommendation
Either update the documentation to accurately reflect which functions are protected by the Pausable mechanism, or apply the whenNotPaused modifier consistently to all state-changing functions such as cancelPayment() and settlePayment().
