Sub-category rename/delete discovery keyed on the whole filter body, so
it missed any ref using an SP1 boolean filter. `@{mood:warm or intense}`
indexed as `mood:warm or intense` (TS) / matched by `sub == "warm"` exact
equality (Python), so a rename or delete of `warm` neither updated the
SPA badge nor counted the ref in the server-side preview — even though
the rewrite (engine/cascade/fixers.py) already token-matches and DID
rewrite it on apply. Preview undercounted what apply changed.
Both discovery layers now collect the expression's tags via the shared
parser and index/match per-tag (negated tags count; the `!null` marker is
not a tag):
- TS: new collectTags in subcatExprCascade.ts; reverse-dep-index builds
one toSubcat entry per tag.
- Python: new collect_tags in fixers.py; scan._scan_subcat tests tag
membership instead of raw-string equality.
DumiFlex
4cda98f227