v2.6.0

What's Changed

• Updated the congestion control logic to introduce progressive recovery rates based on the time since the last NAK.
  • The recovery rates are now categorized as follows:
    • 25% for recent NAKs (<5 seconds)
    • 50% for 5-7 seconds
    • 100% for 7-10 seconds
    • 200% for 10+ seconds
  • Additionally, added tests to validate the new recovery rates and their behavior under fast recovery mode, ensuring accurate window adjustments based on timing constraints.
• Replaced last_keepalive_ms field with last_sent (Instant-based) to track all data sends, not just keepalives
• Added comprehensive bitrate tracking for logging purposes
• Refactored connection state into organized sub-structs (RttTracker, CongestionControl, BitrateTracker, ReconnectionState)
• Split large sender.rs and connection.rs files into modular components
• Integrated mimalloc as the global allocator on non-Windows platforms
• Updated deprecated rand::thread_rng() to rand::rng()

Full Changelog: v.2.5.0...v2.6.0