Set runner secret

Signed-off-by: Lee Smet <lee.smet@hotmail.com>

scripts/supervisor_flow_demo.py

@@ -13,8 +13,8 @@ This script:
 Transport: JSON-RPC over HTTP to the Coordinator (default COORDINATOR_URL=http://127.0.0.1:9652).
 
 Example usage:
-  COORDINATOR_URL=http://127.0.0.1:9652 python3 scripts/supervisor_flow_demo.py --dst-ip 2001:db8::1
-  COORDINATOR_URL=http://127.0.0.1:9652 python3 scripts/supervisor_flow_demo.py --dst-pk bb39b4a3a4efd70f3e05e37887677e02efbda14681d0acd3882bc0f754792c32
+  COORDINATOR_URL=http://127.0.0.1:9652 python3 scripts/supervisor_flow_demo.py --dst-ip 2001:db8::1 [--secret your-secret]
+  COORDINATOR_URL=http://127.0.0.1:9652 python3 scripts/supervisor_flow_demo.py --dst-pk bb39b4a3a4efd70f3e05e37887677e02efbda14681d0acd3882bc0f754792c32 [--secret your-secret]
 
 Notes:
 - Exactly one of --dst-ip or --dst-pk must be provided.
@@ -123,6 +123,7 @@ def parse_args() -> argparse.Namespace:
         help="ScriptType for jobs/runner. Default: Python"
     )
     p.add_argument("--topic", default="supervisor.rpc", help="Supervisor topic. Default: supervisor.rpc")
+    p.add_argument("--secret", help="Optional supervisor secret used for authenticated supervisor calls")
     p.add_argument("--poll-interval", type=float, default=2.0, help="Flow poll interval seconds. Default: 2.0")
     p.add_argument("--poll-timeout", type=int, default=600, help="Max seconds to wait for flow completion. Default: 600")
     return p.parse_args()
@@ -191,16 +192,20 @@ def main():
     print_header("runner.create (or load)")
     # runner.load requires both context_id and id
     try:
+        runner_payload = {
+            "id": runner_id,
+            "pubkey": runner_pubkey,
+            "address": runner_address,
+            "topic": topic,
+            "script_type": script_type,
+            "local": False,
+        }
+        # Optional supervisor secret used by router for authenticated supervisor calls
+        if getattr(args, "secret", None):
+            runner_payload["secret"] = args.secret
         runner = client.call("runner.create", {
             "context_id": context_id,
-            "runner": {
-                "id": runner_id,
-                "pubkey": runner_pubkey,
-                "address": runner_address,
-                "topic": topic,
-                "script_type": script_type,
-                "local": False
-            }
+            "runner": runner_payload
         })
     except RuntimeError as e:
         msg = str(e)