849b32240b
- Add set_false_path -hold for source-synchronous ADC IDDR paths in adc_clk_mmcm.xdc (eliminates 8 hold violations from build 12) - Add DDR falling-edge input delay constraints to xc7a50t_ftg256.xdc (parity with 200T XDC) - Reorganize scripts/ into target subdirectories: 50t/, 200t/, te0712/, te0713/, utils/ so users can run the correct build for their hardware - Delete obsolete build scripts (build17-20) superseded by build_50t/200t - Update project_root paths in all moved scripts (.. -> ../..)