- test_feed_views: extend _seed_tagged so a channel carries 2+ tags in a
non-topic category, and add language-AND / other-AND equivalence cases — the
per-category any/all generalization was only exercised for topic.
- tagModes.test: coerceTagModes migration (legacy global tagMode -> topic),
per-category preservation, invalid-value coercion, defaults.
- urlState.dom.test: per-category tag-mode URL round-trip + legacy ?tagmode=and
migration into the topic slot.
- Combobox.dom.test: the any/all match footer (hidden below 2 selections, reports
a mode change at 2+).
- chipOverflow.test: the all/some/count fit boundaries and the +N reservation.
peter
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