v0.57.8 — A gate that names its stage, and a briefing floor that adapts

Two more items from the 2026-09-01 field report: the gate that appeared to print twice (§4.4) and the
semantic ranking that stopped discriminating on a broad corpus (§4.1).

The pass line names its stage

• Hivelore gate passed (pre-commit) / (pre-push) (field report §4.4). One git action fires two
  hooks — pre-commit then pre-push — each with its own check count. Unlabelled, the two lines read as a
  single gate printed twice with mismatched numbers ("7 then 6"), and the report author could not tell
  whether it was two hooks, two passes, or a display bug. The stage is now named, so the two lines are
  self-explaining.

The briefing floor adapts to the corpus

• Semantic-only hits are floored at the corpus distribution, not an absolute cutoff (field report
  §4.1). On ~40 memories cosine scores compress into a narrow band (everything > 0.55), so an absolute
  min_semantic_score of 0 sorted nothing and the same three or four unrelated memories surfaced at
  ~0.6 for every task. The default now applies an adaptive floor at mean + ½σ of the hit
  distribution: it trims the undifferentiated mass on a compressed distribution, always keeps the top
  hit, never drops below an explicit caller floor, and does nothing below 12 samples so small corpora
  (and the retrieval eval) are untouched. Retrieval recall held at 98% with no new misses.