Emit antithesis_setup complete from first_setup.py

Without this signal Antithesis never schedules the parallel/anytime
drivers — it waits for setup_complete before injecting faults and
running the workload. Also emit it on the already-done path so a
container restart mid-run doesn't stall the scheduler.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: saratomaz

components/gov-cli/composer/governance-python/first_setup.py

@@ -27,6 +27,7 @@ def main() -> int:
 
     if g.SETUP_MARKER.exists():
         sdk.sometimes(True, "governance_setup_already_done")
+        sdk.setup_complete()
         return 0
 
     cluster = g.make_cluster()
@@ -130,6 +131,7 @@ def main() -> int:
 
     g.SETUP_MARKER.touch()
     sdk.sometimes(True, "governance_setup_complete")
+    sdk.setup_complete()
     print(f"setup complete (cc_active={cc_active} dreps={dreps})", file=sys.stderr)
     return 0
 

testnets/cardano_node_governance/docker-compose.yaml

@@ -134,7 +134,7 @@ services:
   # Sleeping cardano-cli container holding the governance composer
   # drivers. Built with DRIVER_LANG=python.
   gov-cli:
-    image: ghcr.io/saratomaz/cardano-node-tests-antithesis/gov-cli@sha256:f2afbe3090ee3fd747565c8137d0046996d1d3ee0a2f565dd6019c4261175bf4
+    image: ghcr.io/saratomaz/cardano-node-tests-antithesis/gov-cli@sha256:879f5f83b682f53f3f8636ff8ed6ffc9bac5b7795be5e82ec360dbc8fbaf6a74
     container_name: gov-cli
     hostname: gov-cli.example
     labels: