Ground G6c-B practice records in upstream sources while preserving frozen replay - #886

### Scope

The dated readiness manifest still reports G6 as HOLD after #881 landed and the F9 receipt accepted G6a. Split that gate into G6a (MET), G6b (ongoing settings ownership), and G6c (ongoing records, #885/#886), and bind G5's six closure requirements without granting G5 acceptance. Update the matching R&D and follow-up state displays from the same accepted receipts.

- Base commit: `aba02ec3456d383bcc2fc72883db098f9be7918a`
- Lane: `lane:foundation`
- Owned paths touched: `tools/north-star/sources.json`, `catalogs/north-star/readiness.json`
- The existing builder regenerates the complete dated view, including current main-input provenance digests. Its 20 layer scopes and 36 SDK items remain. The evolving Monitoring status source matches the owner selector twice, so that single field becomes UNVERIFIED; its bounded snapshot is distinct from the separately preserved Monitoring follow-up.

## SOTA sources

- Existing reference implementation: [native-agent-stack at aba02ec, tools/north-star/build_readiness.py](https://github.com/seathatflowsinourveins/native-agent-stack/blob/aba02ec3456d383bcc2fc72883db098f9be7918a/tools/north-star/build_readiness.py), `Receipts.claim` and the supported `--write`/`--check` interface. This change uses the shipped receipt adapter and its digest-bound selectors. The gate-refresh procedure is documented in [tools/north-star/README.md, Refresh on a gate change](https://github.com/seathatflowsinourveins/native-agent-stack/blob/aba02ec3456d383bcc2fc72883db098f9be7918a/tools/north-star/README.md#refresh-on-a-gate-change).
- The original adapter's retained upstream survey is `research/fullspeed-20261008/ns-readiness-manifest/upstream-research.md` under the durable state root; the implementation follows [Python 3.13 re](https://docs.python.org/3.13/library/re.html) for exact text selection and [SLSA v1.2 verification](https://slsa.dev/spec/v1.2/verifying-artifacts) for the distinction between input identity and acceptance. This is a source-binding refresh of that accepted implementation.
- Gate evidence: `coordination/command-center/windows/f9-g6a-881-20261008/RECEIPT.md`, SHA256 `24906eaf9cc3f041ed6bd500dd41095e4282a551ad1403d80a76a709ce7cf6a1`; line 3 identifies [#881](#881 merge commit and timestamp, line 5 records F9 application, lines 14–15 record both fresh-session checks, and line 17 adjudicates G6a and the remaining G6 scopes. Installed `gh` 2.102.0 independently returned the same #881 merge metadata and OPEN draft record PRs [#885](#885) and [#886](#886).
- G5 requirements: `coordination/command-center/ITEM-ns2604-coop-20261008T210228Z.md`, SHA256 `d3868b6a0a81826407ade426c6f8a2c6511401177d3801eb24b3ae0e9023aa43`, lines 16–21. The six criteria cover population witnesses; row evidence with conservative PENDING dispositions; the mined-list census; validation of the full 368-star/45-field/2-document asset; both-family reads of 113 action rows plus seeded 59-row samples per stratum with zero defects; and a cued release of the hash-pinned asset. These fields record requirements rather than passed checks.

### Evidence-class table

| Claim | Evidence class | Command / receipt |
| --- | --- | --- |
| G6a is MET, #881 merged at `2026-10-08T20:41:37Z` as `e48de2e6fa1dd3b740af4793ea5824ea35476dba`, and F9/fresh-session checks are retained | source_review | F9 receipt at the SHA256 above; bounded `gh pr view 881 --json number,title,state,isDraft,mergedAt,mergeCommit,url` |
| G6b/G6c continue, with #885/#886 covering records | source_review | F9 receipt line 17; bounded GitHub PR metadata |
| G5 has six required closure conditions and remains the open START gate | source_review | G5 task record at the SHA256 above, lines 12 and 16–21 |
| The manifest reproduces the declared sources and joins each new gate field to exactly one retained selector | local_integration | Builder `--write`, `--check`, and focused gate/receipt integrity assertions, rc 0 |
| Adapter and page-publication regressions pass | synthetic | `tests.test_north_star_readiness`, 32 fixture tests, rc 0 |
| Repository publication integrity and scope pass | local_integration | `python3 scripts/validate.py`, rc 0; 70 components, 10,900 hashed files, 4 profiles, 239 receipts |

### Local commands run

```sh
nice -n 10 ionice -c2 -n7 python3 -I tools/north-star/build_readiness.py --write
# rc 0; 8 gates, 20 layers, 36 SDK items
nice -n 10 ionice -c2 -n7 python3 -I tools/north-star/build_readiness.py --check
# rc 0; manifest SHA256 0e2dba792fff6d4adbc13b47995474591f1024e8253bd7e5caf3a5c4db619aae
timeout 600 nice -n 10 ionice -c2 -n7 python3 -m unittest tests.test_north_star_readiness
# rc 0; 32 tests, OK
nice -n 10 ionice -c2 -n7 python3 scripts/validate.py
# rc 0; integrity and scope passed
git diff --check
# rc 0
```

Durable logs under `research/fullspeed-20261008/ns-readiness-manifest/`:

- `g6-split-targeted-tests.log`, SHA256 `fcee3223b60efc73e55954ea5d703f2b75952d3a6b8d9965e7127379f70b03cc`.
- `g6-split-publication-validate.log`, SHA256 `9106406d71891d803b9ed1569f54c5df6195c29846e57e0f1c284e993ce92652`.

### Decision record

This is the accepted gate-receipt refresh requested by task `task-ns2604-coop-20261008T212726Z`. The two named immutable source records above establish its scope; source selectors retain full digests and exact line locators. A replacement adjudication receipt would supersede these values through the same supported refresh procedure.

### Host evidence

This PR changes the readiness view and its selectors. Host-evidence receipt requirements are not applicable to its owned paths.

### Checklist

- [x] New/changed GitHub Actions are pinned to a full commit SHA with a version comment (no floating tags). Not applicable to this data refresh.
- [x] New/changed workflows declare top-level `permissions: {}` and grant each job only what it needs. Not applicable to this data refresh.
- [x] No secrets are printed, logged or committed; no new required secret was added without a documented owner.
- [x] No new paid hosting, subscription or billing surface was introduced.
- [x] Peer-owned untracked files and worktrees were preserved (not deleted, moved or overwritten).

Apply the complete CC read of b478dde
in ONE fix commit, with no rebase. Preserve authority, grants, requests,
conditions and withdrawal rights as paraphrase; never quote the owner.

P1 dispositions under docs/decisions/:
- 2026-10-03-retire-pr-515-catalog-index.md:33-34,62-68,80-86,287-292:
  restore the owner's retirement rule and explicit overturn gate, repair
  sentences, and restore all three full-pinned program-5 link definitions.
- 2026-10-03-retire-gpt6-lane-compression-ab.md:44,412,461-463:
  restore relayed conditional approval, not-applied status and Gate A's
  owner/six-hour condition; restore decision-a L276-295 and settings L64-85.

P2 authority and gate dispositions under docs/decisions/:
- 2026-10-01-new-wsl-definitive-defaults.md:11-14,446-454;
  2026-10-02-new-wsl-layer-consensus.md:27-34,183-186,481-483:
  restore owner delegation and both frozen authorization.reading clauses,
  owner-mandated exceptions and pins, without changing sealed consensus.
- 2026-10-02-omniroute-mac-rebuild.md:5-7,66,69;
  2026-10-03-omniroute-3851-pin.md:15-17;
  2026-10-03-retire-gateway-ab-r02.md:3:
  restore deciding session and owner's dated selection/custody authority.
- 2026-10-03-retire-pr508-token-stack-winner.md:3,7-8,24,32,76-95,
  115-125,146-155,194,251: restore four historical owner answers,
  coordinator interpretation, reinstatement/deletion gates and citations.
- 2026-10-03-new-wsl-local-models.md:79-82:
  restore scoped HF-key grant, separate from current interface source reads.
- 2026-10-04-claude-template-holds-out-token-lane-carriers.md:3-5,66-68;
  2026-10-04-coordinator-dispatch-and-spend.md:5-7,99;
  2026-10-04-new-wsl-changelog-parity.md:3-6,53;
  2026-10-04-new-wsl-clean-default-holdouts.md:3-4,18-25,60;
  2026-10-04-new-wsl-jcodemunch-user-scope.md:3-9,76-77;
  2026-10-04-new-wsl-token-layer-default.md:3-15,35:
  restore authority, two-decision overturn, standing rules and directive field.
- 2026-10-04-codex-rtk-hook-qualified.md:3-9,32,45,49,81,101,122-126:
  restore trust authority, relay/measurement caveats and withdrawal rights.
- 2026-10-05-official-upstream-never-rebuild.md:3-25,85-103:
  restore the adopted instruction strings and identify historical carriers,
  keeping coordinator interpretations separate from the owner's decisions.
- 2026-10-05-omniroute-gateway-composition.md:12,65-72:
  distinguish historical undeployed option B from the recorded C reading;
  preserve the owner's withdrawal right and running composition.
- 2026-10-05-harness-context-budget.md:87-101,213-215,279-292,327-334,
  361,459,471-480,620-636,658,734,752: restore priorities, delegation,
  timestamp provenance, bookkeeping authority, open gates and listing links.
- 2026-10-05-main-checkout-backup-disposition.md:11,15,141,144,387:
  restore publication authority and distinguish 189 historical reported
  matches from zero locally reverified; unavailable ae68811 stays qualified.

P3 and cross-artifact dispositions:
- docs/harness-defaults.md:64,70,124-126,202,205:
  restore the unconditional rule, original round-3 anchor, listing and #528.
- docs/secret-storage.md:1733-1740:
  restore the privacy decision/link and qualify full-pinned OTel interface.
- docs/decisions/2026-10-05-dagu-mise-pin-move.md:151:
  architecture consumer resolves to restored retire-pr508:120.
- Restore all removed historical Markdown URLs in owned records and
  repair broken prose without physical line-count drift. Untouched config,
  settings, handbook, manifest-stack and client-config tests again cite
  the restored decision meaning; no runtime directive or carrier changes.
- docs/decisions/2026-10-08-source-based-records-g6c-b.md:3-14,22-32,65-73
  distinguishes local authority from current interface review. The changed
  definitive-defaults regression now requires both canonical authorization
  clauses and owner delegation while still excluding verbatim owner speech.

Primary citations are verified or removed; newly added version-tag links
use full upstream SHAs and doc URLs carry fetched UTC. The GraphQL reopen
page's exact fragment is verified. No upstream tool is rebuilt or forked.
Native register_file refreshes only 21 existing hash/byte rows; membership,
other keys, frozen consensus and four sealed records remain unchanged.

FULL validation, assemble --check, render --check and the touched test module
returned 0; client-config, handbook and gateway-composition regressions also
returned 0. Exact capped commands, UTC, head and outputs accompany the push
receipt. No provider/GPU/broker acceptance or landing is claimed.

Generated by OpenAI Codex; reasoning effort max.