Reproduce UCI temperature scope on CPU

Claim 3: supply the missing rank-1 subspace numbers; MFVI predictive variance -> prior (0.99996 at d=131072) while the exact posterior is flat at 0.166667, closed forms validated to 1.8e-15 against direct inversion

Add MFVI temperature experiment

Claims 4-5: run the temperature sweep. Optimal T=0.104 in-distribution (12/12 seeds below 1) and T=4.201 OOD (10/12 above 1), against a measured 1.73x MFVI predictive-variance inflation

Map exact current anchored claims to existing independent evidence

Replace retired entry with MFVI predictive-variance reproduction

Update logbook: Repro - Diffusion Bridge or Flow Matching? A Unifying Framework and Comparative Analysis

initial commit