LinearReader

• Changed default initial compression level from 2 to 4
• Added backup subfolders
• Improved .linear load, flush, and recompress performance with fewer memory copies and allocations
• Optimized flush compression to reduce intermediate buffer usage
• Added adaptive live compression during heavy flush pressure
• Added detailed region I/O timing metrics for load and flush operations
• Expanded /linearreader bench with per-phase timing metrics
• Split /linearreader bench into bench and bench debug
• Improved backup refreshing logic with new config-based behavior
• Improved chunk pruning dry run region selection and current region reporting
• Added configurable confirmation window duration for chunk pruning and backup syncing (10s–3600s, default 60s)
• Unified validation rules across all systems
• Backup syncing now treats dirty regions as busy
• Internal changes preparing for multi-version support
• General performance fixes and optimizations

(Wiki will be updated soon)