docs: record exact P13 native local validation and current original-unit state

docs/plans/original-completion-2026-10-02/progress_snapshot.json

@@ -157,8 +157,8 @@
   },
   "current_delivery_state_counts": {
     "completed": 14,
-    "in_progress": 23,
-    "planned": 51
+    "in_progress": 24,
+    "planned": 50
   },
   "completed_current_deliveries": [
     "P00-01",
@@ -10422,5 +10422,23 @@
     "source": "fe44f550750acbf5c510346e7cacbea2ccbdd184",
     "original_unit_credit_added": 0,
     "all8_accepted": false
+  },
+  "current_p13_02_backend_local_progress": {
+    "observed_at_jst": "2026-10-17T17:28:02.473746+09:00",
+    "source": "a7e3069b167511b3194242b3403fbcc35244a526",
+    "evidence": "docs/plans/original-completion-2026-10-02/execution/p13-02/root-a7e3069-local-20261017/CURRENT_ACCEPTANCE_STATUS.json",
+    "source_adopted_on_main": false,
+    "whole_original_accepted": false,
+    "new_credit": 0,
+    "local_suites": 15,
+    "local_checks": 863,
+    "full_regression": false,
+    "formal_independent_review": false,
+    "prior_delivery_counts_before_P13_started": {
+      "completed": 14,
+      "in_progress": 23,
+      "planned": 51
+    },
+    "scope": "Corrects planned→in_progress only; no formal completion or source adoption"
   }
 }