chore: auto-commit after complete-milestone

GSD-Unit: M060

Author: keithah

.gsd/CODEBASE.md

@@ -1,7 +1,7 @@
 # Codebase Map
 
-Generated: 2026-04-21T17:52:34Z | Files: 500 | Described: 0/500
-<!-- gsd:codebase-meta {"generatedAt":"2026-04-21T17:52:34Z","fingerprint":"75e090500ae038323aae383f34bfc69de08efa06","fileCount":500,"truncated":true} -->
+Generated: 2026-04-21T18:05:27Z | Files: 500 | Described: 0/500
+<!-- gsd:codebase-meta {"generatedAt":"2026-04-21T18:05:27Z","fingerprint":"42966d944434ab3473cd1afca1c1b31de5af6947","fileCount":500,"truncated":true} -->
 Note: Truncated to first 500 files. Run with higher --max-files to include all.
 
 ### (root)/
@@ -72,7 +72,7 @@ Note: Truncated to first 500 files. Run with higher --max-files to include all.
 - `fixtures/webhooks/check_suite/completed-basic.json`
 
 ### scripts/
-- *(159 files: 155 .ts, 3 .sh, 1 .md)*
+- *(161 files: 157 .ts, 3 .sh, 1 .md)*
 
 ### src/
 - `src/config.test.ts`
@@ -160,4 +160,4 @@ Note: Truncated to first 500 files. Run with higher --max-files to include all.
 - `src/jobs/workspace.ts`
 
 ### src/knowledge/
-- *(81 files: 81 .ts)*
+- *(79 files: 79 .ts)*

.gsd/PROJECT.md

@@ -16,19 +16,21 @@ Milestones M043-M060 are complete in repo history, and M021/S05 remains the olde
 
 ### M060 status
 
-**M060: Knowledge Subsystem Test Backfill is in progress, with S01 complete.** The milestone is closing the highest-value knowledge-layer unit-test gaps without overlapping M027 corpus-integrity work:
+**M060: Knowledge Subsystem Test Backfill is complete.** The milestone backfilled the highest-value knowledge-layer unit-test gaps without overlapping M027 corpus-integrity work:
 
 - **S01** added `src/knowledge/test-coverage-exemptions.ts` as the canonical runtime-target and type-only-exemption manifest, added `scripts/verify-m060-s01.ts` plus `scripts/verify-m060-s01.test.ts`, wired `bun run verify:m060:s01`, and backfilled direct same-name tests for `isolation.ts`, `wiki-fetch.ts`, `issue-retrieval.ts`, `wiki-popularity-config.ts`, `wiki-linkshere-fetcher.ts`, `wiki-popularity-scorer.ts`, and `cluster-scheduler.ts`.
 - The new tests prove behavior rather than snapshots, including adaptive retrieval filtering, exact issue-body truncation, MediaWiki URL/header handling, popularity-score normalization and recency weighting, batched `linkshere` pagination with fail-open continuation, overlap guards, and deterministic scheduler timer lifecycle behavior.
 - During S01, `start()` was made idempotent in the popularity scorer and cluster scheduler so duplicate starts cannot leak extra timers under test or production use.
+- **S02** added `scripts/verify-m060-s02.ts` plus `scripts/verify-m060-s02.test.ts`, wired `bun run verify:m060:s02`, registered the new verifier in `scripts/REGISTRY.md`, and established the canonical M060-vs-M027 ownership boundary in `.gsd/milestones/M027/M027-SUMMARY.md`.
+- The S02 ownership contract states that M060 owns direct same-name unit tests for the runtime targets declared in `src/knowledge/test-coverage-exemptions.ts` plus explicit type-only exemptions, while M027 owns persisted-corpus audit, repair/status, and live retriever acceptance proof through `verify:m027:s01` through `verify:m027:s04`.
+- The boundary remains truthful about shared source-file participation when proof classes differ, and preserves the existing M027 constraint that `issue_comments` remains audited and repairable but outside the live retriever.
 
-Fresh slice-close verification passed:
+Fresh milestone-close verification passed:
 
-- `bun test --max-concurrency=2 src/knowledge/isolation.test.ts src/knowledge/wiki-fetch.test.ts src/knowledge/issue-retrieval.test.ts src/knowledge/wiki-popularity-config.test.ts src/knowledge/wiki-linkshere-fetcher.test.ts src/knowledge/wiki-popularity-scorer.test.ts src/knowledge/cluster-scheduler.test.ts`
-- `bun test ./scripts/verify-m060-s01.test.ts`
-- `bun run check:orphaned-tests`
+- `git diff --stat HEAD $(git merge-base HEAD main) -- ':!.gsd/'`
 - `bun run verify:m060:s01`
-- `bun run verify:m060:s01 --json`
+- `bun run verify:m060:s02`
+- `gsd_milestone_status(M060)` confirmed both slices complete
 
 ### M059 status
 
@@ -67,8 +69,10 @@ Fresh milestone-close verification passed:
 ### Notable current seams
 
 - **M060 knowledge coverage seam:** `src/knowledge/test-coverage-exemptions.ts` defines the exact S01 runtime-target and type-only-exemption contract for the knowledge-layer backfill.
-- **M060 verifier seam:** `scripts/verify-m060-s01.ts` proves package wiring, registry registration, direct same-name test coverage for the seven selected runtime modules, and that the 11 explicit exemptions remain type-only. `--json` output exposes stable check IDs and localized status codes for future milestone verification.
+- **M060 direct-test verifier seam:** `scripts/verify-m060-s01.ts` proves package wiring, registry registration, direct same-name test coverage for the seven selected runtime modules, and that the 11 explicit exemptions remain type-only. `--json` output exposes stable check IDs and localized status codes for future milestone verification.
+- **M060 ownership-boundary verifier seam:** `scripts/verify-m060-s02.ts` proves package/registry wiring, rendered decision D171 presence, and the canonical M027 summary markers that distinguish M060 unit-test ownership from M027 corpus-level audit/repair/retriever proof without claiming file exclusivity.
 - **Knowledge same-name ownership seam:** `bun run check:orphaned-tests` remains the structural gate that enforces direct same-name ownership across `src/knowledge` and the rest of the repo.
+- **M060/M027 boundary narrative seam:** `.gsd/milestones/M027/M027-SUMMARY.md` now carries the canonical `M060/M027 ownership boundary` section that future verifiers and milestone closers should treat as the durable narrative contract.
 - **Script registry seam:** `scripts/verify-m059-s01.ts` proves `scripts/REGISTRY.md` coverage, duplicate detection, usage-truth validation, scope-contract coverage for tracked shell helpers, and `package.json` wiring for `verify:m059:s01`.
 - **Orphan-audit seam:** `scripts/verify-m059-s02.ts` proves that every `usage: none` row is either explicitly retained with evidence or marked removed in the S02 appendix, and that package wiring remains correct.
 - **Registry inventory seam:** `scripts/REGISTRY.md` is the repo-owned classification surface for all tracked script files and carries the parser-friendly S02 orphan-audit appendix for caller-free script disposition.
@@ -111,9 +115,9 @@ See `.gsd/REQUIREMENTS.md` for the explicit requirement inventory and status map
 - [x] M059: Script Registry & Orphan Audit
   - [x] S01: Create the script registry
   - [x] S02: Sweep orphan scripts
-- [ ] M060: Knowledge Subsystem Test Backfill
+- [x] M060: Knowledge Subsystem Test Backfill
   - [x] S01: Test the highest-centrality knowledge files
-  - [ ] S02: Reconcile M027 overlap
+  - [x] S02: Reconcile M027 overlap
 - [ ] M021: Issue Triage Foundation
   - [x] S01: Issue Corpus Schema Store
   - [x] S02: Issue MCP Tools
@@ -127,4 +131,4 @@ See `.gsd/REQUIREMENTS.md` for the explicit requirement inventory and status map
   - Execute the umbrella in this order: **M029 -> M028 -> M027**.
   - Hold the **M031/M032** portion until **#98** and **#99** are complete.
 - [x] #98 — M059 Script Registry & Orphan Audit
-- [ ] #99 — M060 Knowledge Subsystem Test Backfill
+- [x] #99 — M060 Knowledge Subsystem Test Backfill