Document Go interface candidates for changed concrete methods Record Draft #1285's fixed Echo/client_golang/afero results, method-set rules, gopls comparison and final-head CI. Link the follow-up that closes the #1284 remaining-miss note.
Record final-head CI for Draft #1284
Update Draft #1284 head after ZIP refresh
Document Go interface declaration anchors Record the fixed Echo/client_golang comparison, gopls trial and remaining implementation-edge gap for Draft #1284. Link it from the review map and collaboration overview.