V2 end-to-end findings: 48/67 repairs, no valid-cell harm; document one incorrect repair

V2 end-to-end test: 76/76 cases (part 3)

V2 end-to-end test: 76/76 cases (part 2)

V2 end-to-end test: 76/76 cases

V2 end-to-end test: 70/76 cases (part 3)

V2 end-to-end test: 70/76 cases (part 2)

V2 end-to-end test: 70/76 cases

V2 end-to-end test: 60/76 cases (part 2)

V2 end-to-end test: 60/76 cases

V2 end-to-end test: 50/76 cases (part 2)

V2 end-to-end test: 50/76 cases

V2 end-to-end test: 40/76 cases (part 2)

V2 end-to-end test: 40/76 cases

V2 end-to-end test: 30/76 cases

V2 end-to-end test: 20/76 cases

V2 end-to-end test: 10/76 cases

Document v2 architecture and CSV usage; mark previous evaluation as historical

Document frozen 55-table end-to-end test and validation curves; weights unchanged