EmiAccelerator

Fixed: Fixed missing EMI craft history / usage history when cache is hit. The worker thread now runs all required stages completely when cache hits (recipe baking, BoM reload, persistent data loading, etc.), only skipping the reloading of stack list (saving about 5.5 seconds). The search index is still built asynchronously in the background. Changed: Cache hit reload time increased from ~130ms to ~18s (varies with mod count), while all EMI features work properly.