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fix: MPS-24 auto-suggest — way more clusters, stop missing 'holiday'

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Operator: '100 suggested tags is not enough, we need way more —
missing holiday holidays'. Two separate 100 caps in lib/tag_suggest.py:

- DESCRIPTION_TOKEN_CAP 100 -> 400: long teaching-resource
  descriptions truncated cross-cutting words like holiday/holidays/
  seasonal before they were ever counted, so those clusters never
  surfaced (verified: neither word is a stopword; season/seasonal/
  valentine only appear in comments, not ENGLISH_STOPWORDS).
- DEFAULT_TOP_N 100 -> 500: a 481-product catalogue has valid niche
  groups ranking past the old cut. The min_products / max_share /
  min_title_share filters already strip noise, so a high ceiling
  surfaces the long tail without resurfacing junk.
- views/shop.py ?top_n= clamp 500 -> 5000 for operator headroom.

Both caps stay bounded (deduped unique tokens / no unbounded query —
CWE-407-safe). Test: +test_deep_description_word_surfaces_after_cap_raise
(word past the old 100-token cap now clusters). 1137 passed.

Docs: CLAUDE.md Phase 2, mps-24.md Phase 2.8k.
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russell@unturf.com 2026-05-16 16:19:31 -04:00
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docs/tickets/mps-24.md
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@ -363,6 +363,20 @@ Tests (`test_functional.py::TestProductTagsSpa`):
Deferred (occasional click, not the hot path): AJAX-ifying the
"Suggest categories" link — still a full navigation by design.
**Phase 2.8k — auto-suggest: way more, stop missing `holiday`**
(shipped 2026-05-16): operator: "100 suggested tags is not enough, we
need way more — missing holiday holidays". Two `100` caps in
`lib/tag_suggest.py`: `DESCRIPTION_TOKEN_CAP` 100 → **400** (long
teaching-resource descriptions truncated cross-cutting words like
`holiday`/`holidays`/`seasonal` before they were ever counted —
verified neither word is a stopword) and `DEFAULT_TOP_N` 100 → **500**
(481-product catalogue had valid groups ranking past the cut; the
min_products / max_share / min_title_share filters already strip
noise, so a high ceiling surfaces the long tail safely). `?top_n=`
URL clamp raised 500 → 5000 for headroom. Both caps stay bounded
(deduped unique tokens / no unbounded query — CWE-407-safe). Test:
`test_deep_description_word_surfaces_after_cap_raise`.
**Phase 2.8j — drop redundant tag-detail header** (shipped
2026-05-16): operator: remove the tag title + "← All products" from
the top of the tag SERP. With the always-on chip strip (active