fix(gre): отклонять повреждённые и повторяющиеся native идентификаторы

docs/ux-ui/acceptance/gre221-build-proof-2026-10-14.json

@@ -0,0 +1,21 @@
+{
+  "date": "2026-10-14",
+  "block": "12.5.221",
+  "compiled": {
+    "matched": 1056,
+    "missing": 0,
+    "different": 0
+  },
+  "source": [
+    {
+      "kind": "backend",
+      "matched": 490
+    }
+  ],
+  "configSyncScripts": 7,
+  "identityCases": 13,
+  "greFlagCombinations": 49,
+  "productionCases": 22,
+  "optionalDisabledSqlProfileSkipped": true,
+  "initialUnitFixtureFailure": "Undefined-valued optional keys replaced with absent keys to represent native JSON"
+}