Implement KG-WP-0002 posture pilot scaffold

src/kings_guard/main.py

@@ -0,0 +1,49 @@
+from __future__ import annotations
+
+import argparse
+import json
+
+from kings_guard.adapters import observation_from_audit_event
+from kings_guard.contracts import as_jsonable
+from kings_guard.fixtures import load_qonto_assistant_pilot
+from kings_guard.posture import PostureEvaluator
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description="Run the Kings Guard pilot posture demo.")
+    parser.add_argument(
+        "--pilot",
+        default="qonto-assistant",
+        choices=["qonto-assistant"],
+        help="Pilot bundle to evaluate.",
+    )
+    args = parser.parse_args()
+
+    if args.pilot != "qonto-assistant":
+        raise SystemExit(f"Unsupported pilot: {args.pilot}")
+
+    fixture = load_qonto_assistant_pilot()
+    observation = observation_from_audit_event(
+        fixture.audit_event,
+        subject_id=fixture.normalization_hints["subject_id"],
+        capability_scope=fixture.normalization_hints["capability_scope"],
+        identity_binding=fixture.normalization_hints["identity_binding"],
+        egress_destination=fixture.normalization_hints["egress_destination"],
+    )
+    evaluation = PostureEvaluator().evaluate(fixture.genome, observation)
+    print(
+        json.dumps(
+            {
+                "pilot": args.pilot,
+                "source_notes": list(fixture.source_notes),
+                "observation": as_jsonable(observation),
+                "evaluation": as_jsonable(evaluation),
+            },
+            indent=2,
+            sort_keys=True,
+        )
+    )
+
+
+if __name__ == "__main__":
+    main()