Complexity Analyzer

🚨 Critical Fixes

• Fixed server freeze during geo-scan — biome search no longer blocks the main server thread
• Fixed deadlock in ATOMIC scan mode — chunk processing now uses a direct blocking method instead of cross-thread callbacks
• Fixed tick lag from startNextTask() — biome lookup moved to an async pipeline
• Fixed tick lag from handleRelocation() — same async fix applied
• Fixed server hang on shutdown — chunks are now loaded synchronously on the server thread, preventing orphaned chunks that couldn't unload
• Fixed scan stalling due to short timeout — default chunk generation timeout increased from 3–500ms to 10 seconds
• Fixed biome search not cancellable — thread interrupt checks added to long-running loops
• Fixed chunk duplication on repeated scans — previously scanned coordinates are now restored from saved data before resuming

✨ New Features

• Configurable chunk timeout — new geo_scan.chunkTimeoutMs config option for tuning chunk generation wait time (useful for heavy modpacks)
• Scan progress persistence — already scanned chunk coordinates are preloaded on startup, preventing redundant work

⚙️ Changes

• WorldScanner — reworked threading model, added graceful shutdown support
• GeoAnalysisManager — async task scheduling, proper shutdown sequence, scan state restoration
• ComplexityConfig — new geo_scan configuration section
• GeoDataStorage / GeoDatabase — new methods for loading saved scan coordinates