v1.9.0

What's Changed

• feat: runtime UI loading, Qt cross-compat, cluster hardening, and launch optimization by @YaoYinYing in #167
• fix(qa): resolve Codacy & DeepSource high-priority code quality findings by @YaoYinYing in #168
• feat(measure_utils): add support for angle and dihedral measurements by @YaoYinYing in #169
• perf(gremlin): replace cmd.create with pseudoatom + CA coordinate caching by @YaoYinYing in #170
• refactor(QButtonMatrix): QPainter-based matrix for Qt5/Qt6 compatibility by @YaoYinYing in #171
• feat(openkinetics): API integration with registry-driven scorer discovery and engineering hardening by @YaoYinYing in #172
• fix(openkinetics): engineering hardening — timeouts, status logging, 409 retry, quota check by @YaoYinYing in #173

Full Changelog: v1.8.6...v1.9.0