fix(recall): P39 dated reported-speech leftover covering (123/180)

[sdntsng]

Summary

P38 pinned 122/180. One remaining WRONG was conv-43-q136 (What did Tim say about his injury on 16 November, 2023?). Gold is the attributed leftover The doctor said it's not too serious. It is stored in session_18 (recency 44/56) but is not they-evaluative and not first-person got, so P38 session expand never admitted it and /recall abstained.

This PR extends what-say-about leftover covering to dated queries: attributed leftover of the form the <role> said + copula (it's / it is / it was / it isn't) when the query names a calendar date. They-evaluative leftovers still win. Undated queries still use first-person got leftover and do not fall through to reported speech, so NYC It's got cannot steal doctor-said and dated injury queries cannot steal It's got.

Skip-ingest 180 locomo-s0-diag-mh-135-p39-product-recall-s1-771fc1 is 123/180 (+1/−0 vs P38). Product SHA b3d5752. Pin docs SHA is this commit. Search p50 188.5 ms. This is not n=1540, not a Mem0 same-pin, and not SOTA.

Changes

• leftoverCoveringReportedSpeechLine — the <role> said it's … / it is / it was / it isn't. 5–16 words. Role is one lowercase alphabetic token, not a named dictionary. Rejects they-evaluative, first-person got, chat/interrogative/caption.
• What-say-about covering: they-evaluative first; dated queries then reported-speech with object evidence on packet lines; undated queries then first-person got with object evidence. Fail-closed otherwise. No dated→got or undated→reported-speech fallthrough.
• Session expand / floor / rank boost / hop-dump skip / hybrid skip / enumerate item sync use leftoverCoveringSayAboutTargetLine (they, got, or reported-speech).
• Pin: locomo-s0-diag-mh-135-p39-20260825.md, summary JSON, failure ledger jsonl, README row, cycle-closeout 2026-08-25 — P39 dated reported-speech leftover covering (123/180), handover.

Test plan

• gofmt clean on touched files
• go vet ./internal/memory ./cmd/api
• go test ./internal/memory (dated reported-speech covering, dated-skips-got, undated-skips-reported, NYC still got, session expand, search admit)
• Live holds: NYC got, dancers, injury gold, writing/turtle/electronic/dinner/advice/veterans/push/smartwatch
• Skip-ingest 180 --run-prefix locomo-s0-diag-mh-135-p39 → 123/180 (MH 18/33, OD 4/11, SH 71/98, temporal 30/38). Ledger: RETRIEVAL 25 / PROOF 20 / READER 7 / WRITE 4 / HARNESS 1.

Linear / tracking

• ENG-176 (MH) / parent ENG-168

Risk / follow-ups

• Unique next is not Tim injury: dogs/snow (conv-44-q107, gold Confused vs current dislike snow). Gold is in store.
• Do not chase camping-peaceful (conv-41-q145) — gold not stored.
• Do not steal Deborah’s “connected to my body” for Jolene (conv-48-q116 harness timeout).
• Do not add a doctor/injury dictionary. Do not reuse they-copula. Do not steal NYC It's got.
• Goal remains 162/180. 123/180 is 39 short. Full n=1540 product /recall is still 175/1540 = 11.4%.
• Fair Mem0 180 waits on quota reset 2026-09-01. Do not merge S1–S5 compiler/answer/alias/KU (split from mixed S0 PR) #133. Do not revive P29.