Parts library: 3×3 motor matrix, multi-bore props — SITL Forge - FPV Laboratory Steam update #798835

The parts library got a big upgrade. NEW MOTORS — 9 Light/Mid/Heavy Generics covering 7", 10" and 13" frames. Includes a 4720-class 300KV on 12S for the heavy 13" lifters. REBALANCED — every motor in the catalog was rebalanced through a physics-based scaler. No more outliers (the 3115 900KV peak-current overshoot is gone), no more zero-iron-loss motors. NEW PROPS — rebuilt prop lineup; 13" and larger props now carry M5/M6/M8 adapter rings so a single SKU fits 5 mm and 6 mm shafts. NEW FRAME — 9IMOD F13 (13" X-frame, 385 g) added to the catalog. ELECTRONICS WEIGHT — your build's all-up-weight now includes 50 g for the FPV camera, VTX, antennas and mounts. The Workbench hover-throttle and flight-time numbers move accordingly.