feat: Implement cache monitoring system with performance metrics SR. NO. 11

[priyankeshh]

Closes #351

Overview

This PR implements a comprehensive cache monitoring system to optimize image processing performance and memory management, particularly focusing on the adjust_brightness_contrast function.

Key Changes

Cache Monitoring Infrastructure

lazy_static! {
    static ref CACHE_HITS: AtomicUsize = AtomicUsize::new(0);
    static ref CACHE_MISSES: AtomicUsize = AtomicUsize::new(0);
    static ref CACHE_EVICTIONS: AtomicUsize = AtomicUsize::new(0);
    static ref TOTAL_PROCESSING_TIME: AtomicUsize = AtomicUsize::new(0);
}

New Cache Statistics API

• Added CacheStats struct for comprehensive metrics
• Implemented new Tauri commands:
  • get_cache_stats()
  • reset_cache_stats()
  • clear_image_cache()

Memory Management

• Implemented configurable cache limits:
  • Max items: 100
  • Max memory: 1GB
  • Max image dimensions: 4096x4096
• Added automatic cache eviction policy

Performance Metrics

The new monitoring system tracks:

• Cache hit/miss rates
• Memory usage patterns
• Processing time per operation
• Cache eviction frequency
• Overall system performance

[Pranav0-0Aggarwal]

Hey, there are merge conflicts
can you resolve them?

[priyankeshh]

@Pranav0-0Aggarwal I resolved the merge conflicts.