emergency_pause.md

Description

There is currently no way to halt the contract in case of an exploit or vulnerability discovery.

Expected Behavior

The contract owner should be able to pause all quest creation and completions instantly.

Proposed Changes

• Integrate OpenZeppelin Pausable
• Add whenNotPaused modifier to createQuest() and completeQuest()

Acceptance Criteria

• Owner can pause and unpause the contract
• All state-changing functions respect the pause state
• Tests cover paused and unpaused scenarios