docs(spec): P37 build outcomes (refs #607-#616 #620)

docs/superpowers/specs/2026-08-13-cy2027-pfs-proposed-rule-design.md

@@ -119,3 +119,44 @@ still green after the #607 rename.
   creates `RULES[2027]` and migrates the PROPOSED entry).
 - Comment classification/sentiment (P30).
 - Cloud LLM usage (llm stays local-only).
+
+## P37 build outcomes (2026-08-14)
+
+Issues #607–#616 + interstitial #620, milestone P37 (10 commits,
+d726dca..a75b4c7, branch `p37-cy2027-rule` in a worktree — main checkout
+was concurrently owned by #618). #615 and the milestone remain open until
+the scheduled post-close re-farm.
+
+- **CY2027 NPRM parameters** (91 FR 43842, item 5ITGVDJV, all values
+  byte-verified by two agents): proposed CF 32.8409 non-QP / 33.1693 QP,
+  anesthesia 20.2143/20.4165, BN 1.0053, telehealth $32.65, comment close
+  **2026-09-14**. Housed in the new `PROPOSED` registry via
+  `proposed_for(year)` (no RULES[2027] until the final rule). The NPRM's
+  own Summary section mislabels its CY2026 baselines (verbatim carry-over
+  of CY2026's *proposed* QP CF); documented in notes, resolved via the RIA.
+- **Multi-rule ingest**: `pfs.rvu_proposed` now partitioned by cms_rule_id
+  (CMS-1832-P 14,169 + CMS-1848-P 14,518 rows) with per-rule ingest_log
+  provenance; columns aligned with `pfs.rvu` (#607) behind a durable
+  schema-migration guard.
+- **QPP correction (#620, adjudicated)**: P36 had mis-keyed the statutory
+  threshold schedule (payment years read as performance years) —
+  QPP[2023]/[2024] corrected to 50/35 (partial 40/25); QPP[2026] was
+  superseded by CAA 2026 (50/35, partial 40/25, **3.1% incentive revived
+  for payment year 2028**); [2025]/[2027] confirmed correct at 75/50. Both
+  notebooks self-corrected (live registry reads); the P36 notebook's
+  narrative and partition filters were fixed in the final-review wave
+  (d3750ce). CMS's own drafting error at 414.1430(b)(2)(i)(D) documented.
+- **Comment farm**: initial pull complete — **2,727 comments to date**
+  (period open); extraction/indexing follow incrementally; post-close
+  re-farm scheduled via host crontab 2026-09-15 03:17 →
+  `dev/scripts/refarm_cms_2026_2377.sh` (cron-hardened: PATH, honest
+  failure reporting), which posts final counts to #615.
+- **Notebook**: `notebooks/cy2027_pfs_proposed_rule.py` — CF walk
+  (final pending), RVU deltas vs CY2026 final, payment-year-labeled APM
+  section incl. the CAA-2026 "not a clean sunset" story, provenance;
+  headless-validated via staged worktree copy.
+- **Also landed en route**: #617 (FR text normalized at capture — first
+  live use: the CY2027 txt arrived clean), #618 (4 tracemalloc-verified
+  sqlite leaks fixed + `error::ResourceWarning` gate), #619 filed
+  (publish_replica symlink bug, workaround applied), #623 filed (docs
+  tag-list drift from controller tag ops).