[Feat]:: Added Market Pause and Resume Capabilities with Duration Limits

[ryzen-xp]

Pull Request Description

Basic Information

Type: New feature (non-breaking)
Issue: Closes #61
Priority: Low

Description

Implements market pause/resume system for emergency maintenance. Admins can pause markets for 1-168 hours with automatic expiry. Includes pause state tracking, duration validation, and event emission.

Key Components:

• pause_market() - Pause with duration limits
• resume_market() - Manual resume before expiry
• auto_resume_on_expiry() - Automatic resume on timeout
• get_market_pause_status() - Query pause state
• Admin-only access control with authorization

Contract Changes

• New functions: pause_market, resume_market, auto_resume_on_expiry
• New storage: MarketPauseInfo struct
• New events: market_paused, market_resumed, market_auto_resumed
• Access control: Admin authorization required

[greatest0fallt1me]

@ryzen-xp Looks good, thanks for making those changes!