Add exact-task named HardNet control audit

Add exact Theorem 3.5 bound audit

Reproduce claim 4 safety-critical control: CAffNet CBF projection 100% safe + reaches goal (margin >=0), soft baseline collides every run (margin -0.10)

Reproduce CAffNet Thm 3.4/3.5: exact affine constraint satisfaction (2e-15 equality, 0 inequality) + universal approx (RMSE 0.0139->0.0048 as width grows)

Update logbook: Repro - CAffNet Constraint-Affine NN (20hdQQQrA4)

Update logbook: Repro - CAffNet Constraint-Affine NN (20hdQQQrA4)

Merge paper-scale evidence with accepted universal-approximation audit

C2 at paper scale: width-200 joint training, 5 seeds, tight-constraint regime where fixed projections fail

Add analytic qualification for CAffNet C2

Trained-network campaign: real CAffNet MLPs, fixed-projection comparison, width sweep, executed cells

Upgrade to theorem and full-neural audit

Add joint optimization evidence for CAffNet C2

Update logbook: Repro - CAffNet Constraint-Affine NN (20hdQQQrA4)

initial commit