Complete 3axis tutorial native and Web/WASM parity tools

scripts/test_panel_02_snapshot_projection.py

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+#!/usr/bin/env python3
+from __future__ import annotations
+
+import hashlib
+import json
+import unittest
+from pathlib import Path
+
+import sys
+sys.path.insert(0, str(Path(__file__).resolve().parent))
+from generate_panel_02_snapshot_projection import canonical, OUTPUT
+
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+class Panel02SnapshotProjectionTests(unittest.TestCase):
+    def test_contract(self) -> None:
+        report = json.loads((ROOT / OUTPUT).read_text(encoding="utf-8"))
+        self.assertEqual(report["schema"], "panel-02-snapshot-projection.v1")
+        self.assertEqual(report["status"], "verified")
+        self.assertEqual(report["projection_schema"], "axis-panel-snapshot.v1")
+        self.assertIn("gates", report["fields"])
+        self.assertTrue(all(item["status"] == "verified" for item in report["checks"].values()))
+
+    def test_self_hash(self) -> None:
+        report = json.loads((ROOT / OUTPUT).read_text(encoding="utf-8"))
+        unsigned = {key: value for key, value in report.items() if key != "report_sha256"}
+        self.assertEqual(report["report_sha256"], hashlib.sha256(canonical(unsigned).encode()).hexdigest())
+
+
+if __name__ == "__main__":
+    unittest.main()