v0.1.0-alpha.5 - Cross-PDK Spectre/HSPICE LUT validated

Alpha release validated with release core tiny Spectre LUT on SMIC180MMRF, SMIC40LL, TSMC40RF, and SMIC28HKCPlus. Also checked 5T OTA optimize using existing full SMIC180 Spectre and HSPICE LUT caches: differential pair remains symmetric and PMOS load differs only by normal VDS/grid/finger rounding. Public repository excludes private AmpSys/yami/TheScanner/acsolver source; release zip contains obfuscated core binaries only. This plugin is an initial design aid, does not include PDK files or simulators, remains free/public-benefit software, and users must independently verify all tapeout-impacting results.