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First pattern-consistency DRY pass (process #594). The overflow kebab was hand-rolled 7 ways in two divergent activator strategies — Pattern A (#activator + v-bind) which silently breaks inside the teleported image modal (#711), and Pattern B (manual v-model + activator=parent + open-on-click=false + z-index 2400) the modal kebabs needed as a workaround. New <KebabMenu> (components/common) bakes in the modal-safe strategy UNIVERSALLY, so every kebab works in modal and non-modal contexts — folding the latent #711-class bug fix into all five Pattern-A sites. Menu items go in the default slot; variations (size/variant/location/label/min-width) are props. Adopted across all 7: TagChip, SuggestionItem, TagCard, SeriesView card, SeriesManageView, BackupRunsTable, SourceActions. Exhaustiveness (§8b): mdi-dots-vertical now lives only in KebabMenu. Labeled dropdowns / nav menus / filter popovers are a different concept and left alone. Seeded the pattern catalog so new code reuses the primitive. Test: KebabMenu renders slot items + trigger label/glyph + presentational props. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>