Optimization system rework — System.Execute Steam update #1405028

The optimization panel got a complete overhaul. Existing nodes are stronger, costs are higher, and there are four new nodes that create real build choices. Buffed Existing Nodes Cache Priming now gives a permanent +15% production bonus on top of the 60s burst Overclocking no longer penalizes tier 8+ hardware. Max stacks raised from 50 to 75 Bulk Efficiency discount improved to 20% for x10+ buys and 25% for MAX buys. Single-buy penalty reduced from 5% to 3% Memory Leak Patch ramps faster (0.75%/min instead of 0.5%) and caps at 40% instead of 30% Coolant Cycle now reduces heat throttling by 75% and slows overclock stack decay by 50% Recursive Optimization exponent raised from 1.5 to 1.6 New Nodes Frequency Scaling (25 NW) => production scales with your lifetime FLOPS. Gets stronger the further you go Idle Protocol (18 NW) => 1.5x production when you haven't clicked for 30 seconds. Conflict...