feat(LiquidityManagerV2): add default thresholds, vesting duration, and emergency withdrawal delay

[ASingaley]

PR Description

Summary

This PR enhances LiquidityManagerV2 with key default parameters to strengthen liquidity management and protocol safety.

What's New

• Default liquidity threshold: 20 USDC set as baseline for liquidity provisions.
• Default vesting duration: 8 months applied to new liquidity schedules.
• Emergency withdrawal delay: 7 days enforced to improve protocol security.
• Formatting: Applied forge fmt for consistent code style.

Why

• Establishes standardized defaults for predictable behavior.
• Introduces vesting safeguards to align liquidity incentives.
• Adds security buffer for emergency withdrawals.
• Improves readability and maintainability with consistent formatting.

Impact

• Safer liquidity operations.
• Reduced misconfiguration risk by enforcing defaults.
• Prepares groundwork for additional protocol security measures.

Closes #<issue_number_if_any>