Replace naive gradient descent with Newton's method for Platt scaling

Explore CTR calibration: map SGO scores to click-through rate predictions

Fix XSS, VJP contract, binding, session security, name collisions, and error handling

Reframe analysis around persuadable middle, not universal appeal

Add goal-weighted gradient (VJP) — optimize toward objectives, not universal appeal

Remove dating/relationship references from all files

Add CoBRA-inspired bias auditing and calibration for expert panel fidelity

Replace hardcoded keyword filters with LLM-based target-aware category mapping

Remove all hardcoded paths, make skill portable

Initial release: Semantic Gradient Optimization framework