[Audit] Measure full Python port stack against rebuilt R 14.0 parity cache

.github/workflows/inspect-r-api-update.yml

@@ -1,6 +1,10 @@
 name: Regenerate R parity cache
 
 on:
+  # One-shot integration audit: run against the complete Python PR stack.
+  push:
+    branches: [integration/r14-parity-on-python-stack-20261106]
+    paths: [.github/workflows/inspect-r-api-update.yml]
   repository_dispatch:
     types: [nns-r-package-updated]
   workflow_dispatch:
@@ -55,6 +59,13 @@ jobs:
             r_version="${{ github.event.client_payload.r_version }}"
             source_tarball="${{ github.event.client_payload.source_tarball }}"
             windows_binary="${{ github.event.client_payload.windows_binary }}"
+          elif [ "${{ github.event_name }}" = "push" ]; then
+            # The pinned upstream release for the full-stack parity audit.
+            r_repo="OVVO-Financial/NNS"
+            r_commit="7b07a837c130ba7220dbe16c584221508757d5ae"
+            r_version="14.0"
+            source_tarball="NNS_14.0.tar.gz"
+            windows_binary="NNS_14.0.zip"
           else
             r_repo="OVVO-Financial/NNS"
             r_commit="${{ inputs.r_commit }}"
@@ -327,12 +338,16 @@ jobs:
         uses: peter-evans/create-pull-request@v6
         with:
           token: ${{ secrets.OVVO_SYNC_TOKEN || github.token }}
-          branch: automation/r-cache-nns-${{ steps.package.outputs.r_version }}
+          # A separate PR against the full-stack audit branch; never overwrite #190.
+          branch: ${{ github.event_name == 'push' && 'automation/r14-stack-cache-20261106' || format('automation/r-cache-nns-{0}', steps.package.outputs.r_version) }}
+          base: ${{ github.event_name == 'push' && 'integration/r14-parity-on-python-stack-20261106' || github.event.repository.default_branch }}
           delete-branch: true
           commit-message: Regenerate R parity cache for NNS ${{ steps.package.outputs.r_version }}
           title: Regenerate R parity cache for NNS ${{ steps.package.outputs.r_version }}
           body: |
             Automatic parity-cache refresh from the R source of truth.
+            For the one-shot stack audit, this PR targets draft #191 (all port PRs
+            through #189). Do NOT merge until deterministic parity is verified.
 
             - R repository: `${{ steps.package.outputs.r_repo }}`
             - R commit: `${{ steps.package.outputs.r_commit }}`
@@ -357,3 +372,7 @@ jobs:
           echo "Live regeneration outcome: ${{ steps.regenerate.outcome }}"
           echo "Cache-only verification outcome: ${{ steps.verify.outcome }}"
           echo "The regenerated R cache has been preserved in its pull request."
+          if [ "${{ steps.regenerate.outcome }}" != "success" ] || [ "${{ steps.verify.outcome }}" != "success" ]; then
+            echo "::error::The oracle regeneration or its offline verification failed; generated cache is for review, not release."
+            exit 1
+          fi

sync/nns_source.json

@@ -1,7 +1,7 @@
 {
   "r_repo": "OVVO-Financial/NNS",
-  "r_commit": "82a92eb45c1a1892acce82e66175cf2e29434b65",
-  "r_version": "13.3",
+  "r_commit": "7b07a837c130ba7220dbe16c584221508757d5ae",
+  "r_version": "14.0",
   "r_src_tree_hash": "1c82fa36a4af3ce6359cc34b3d841afa6bdd1815",
   "core_repo": "OVVO-Financial/NNS-core",
   "core_commit": "a0d3b93b6ac451bd38e5e9375ef06e6d0d314b9d",
@@ -11,5 +11,5 @@
   "vendored_r_path": "tools/NNS",
   "vendored_r_tarball": "tools/NNS_13.0.tar.gz",
   "r_cache_path": "tests/_r_cache",
-  "notes": "NNS-python consumes accepted NNS-core snapshots for native code and verifies public Python behavior against live or cached R NNS. r_commit/r_version record the R 13.3 commit (82a92eb) whose behavior the parity cache encodes. core_commit is the vendored NNS-core snapshot (extern/NNS-core = CMakeLists.txt, include/, src/ of that commit); it ports the R 13.3 src tree (NNS-core sync/nns_r_source.json) plus the R bug fixes listed there and the core counterparts of the R patches for the mode reducer, the degree-0 nD/dependence tie split and the copula_signed sign and exact count compare, and the core ports of the later R fixes (pairwise SD test, NNS.seas scoring every component series, equal ARMA seasonal weights when they sum to zero, Rmath's dt in the M.reg kernels). The vendored R snapshot (tools/NNS, r_src_tree_hash, tarball) is still the 13.0 tree; re-syncing it is a separate R snapshot update. Parity cache provenance: the shards in tests/_r_cache were regenerated from R NNS 13.3 plus the fixes in OVVO-Financial/NNS pull requests #73-#92; see docs/parity.md, 'Cache provenance: R 13.3 + patches'."
+  "notes": "R 14.0 parity cache was freshly generated in OVVO-Financial/NNS-python PR #190, from OVVO-Financial/NNS commit 7b07a837c130ba7220dbe16c584221508757d5ae (NNS_14.0.tar.gz). This integration branch overlays those 59 generated cache shards onto the cumulative Python implementation stack through #189, preserving its newer parity helper and its accepted vendored NNS-core commit a0d3b93b6ac451bd38e5e9375ef06e6d0d314b9d. R 14.0 parity is under evaluation; regeneration and cache-only parity currently fail on Python main, and some oracle entries are missing. The vendored R snapshot, r_src_tree_hash, and tarball remain at their older 13.0 lineage pending separate sync, and do not identify the live-R behavioral oracle."
 }

tests/_r.py

@@ -20,7 +20,7 @@
 _CACHE_DIR = Path(__file__).with_name("_r_cache")
 _LOCK_PATH = Path(__file__).with_name("_r_cache.lock")
 _SCHEMA_VERSION = 2
-_NNS_VERSION = '13.3'
+_NNS_VERSION = '14.0'
 _KEY_SEPARATOR = "|"
 JsonValue: TypeAlias = str | float | list["JsonValue"] | dict[str, "JsonValue"] | None
 RValue: TypeAlias = (