Implement AXIS parity UI and execution baseline

scripts/test_gui_browser_visual_report.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+"""Contract tests for FE-M4 GUI browser visual evidence."""
+
+from __future__ import annotations
+
+import hashlib
+import json
+import unittest
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+REPORT = ROOT / "coverage/gui-browser-visual-fe-m4.report.json"
+
+
+class GuiBrowserVisualReportTests(unittest.TestCase):
+    def test_contract(self) -> None:
+        report = json.loads(REPORT.read_text(encoding="utf-8"))
+        self.assertEqual(report["schema"], "gui-browser-visual-fe-m4-report.v1")
+        self.assertEqual(report["task_id"], "FE-M4-GUI-06")
+        self.assertEqual(report["status"], "verified")
+        self.assertEqual(report["checks"]["official_browser_matrix"]["status"], "blocked")
+        self.assertEqual(report["release_action"], "STOP_RELEASE")
+
+    def test_self_hash(self) -> None:
+        report = json.loads(REPORT.read_text(encoding="utf-8"))
+        unsigned = {key: value for key, value in report.items() if key != "report_sha256"}
+        expected = hashlib.sha256(json.dumps(unsigned, ensure_ascii=False, sort_keys=True, separators=(",", ":")).encode()).hexdigest()
+        self.assertEqual(report["report_sha256"], expected)
+
+
+if __name__ == "__main__":
+    unittest.main()