BIDS-SRB Protocol Amendment A07: Low-Memory fMRIPrep Context Restart Rule v1.3

Post-baseline-engineering, pre-fault amendment A07 to BIDS-SRB. Two physical fMRIPrep baseline_A launches are preserved as infrastructure-invalid, with zero valid baseline/sham attempts admitted and zero admitted metadata-fault outcomes. A07 invokes the preregistered resource-change rule and prospectively restarts the complete CTX_FMRIPREP_DS007908 2+2 no-fault context under fMRIPrep --low-mem. The exact fMRIPrep 25.2.5 image, curvefit multi-echo estimator, input, subject/session, seed 424242, thread controls, TemplateFlow authority, endpoints, pairwise checks, success tripwire, case universe, and N=9 remain unchanged. Metadata-fault execution remains prohibited.