Add durable NestQuest orchestration roles and controller

orchestration_tests/test_nq_approve_merge.py

@@ -0,0 +1,27 @@
+from pathlib import Path
+import runpy
+import tempfile
+import unittest
+
+
+APPROVE = runpy.run_path(str(Path(__file__).resolve().parents[1] / "scripts/nq-approve-merge"))
+HEAD = "a" * 40
+
+
+class MergeGateTests(unittest.TestCase):
+    def test_review_evidence_must_match_exact_head_and_approval(self):
+        root = Path("/tmp/opencode")
+        root.mkdir(exist_ok=True)
+        with tempfile.TemporaryDirectory(dir=root) as directory:
+            review = Path(directory) / "review.txt"
+            review.write_text(f"Findings: none\nREVIEWED_HEAD: {HEAD}\nREVIEW_VERDICT: APPROVED\n")
+            APPROVE["validate_review"](review, HEAD)
+            with self.assertRaisesRegex(RuntimeError, "exact head"):
+                APPROVE["validate_review"](review, "b" * 40)
+            review.write_text(f"REVIEWED_HEAD: {HEAD}\nREVIEW_VERDICT: CHANGES_REQUIRED\n")
+            with self.assertRaisesRegex(RuntimeError, "exact head"):
+                APPROVE["validate_review"](review, HEAD)
+
+
+if __name__ == "__main__":
+    unittest.main()