fix: add concurrency protection to action sync workflows (#451)

* fix: add concurrency protection to action sync workflows

* style: fix formatting in action/modes.ts

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Co-authored-by: pullfrog[bot] <226033991+pullfrog[bot]@users.noreply.github.com>

test/adhoc/nobashcreative.ts

@@ -1,5 +1,5 @@
 import type { AgentResult, TestRunnerOptions, ValidationCheck } from "../utils.ts";
-import { defineFixture, generateAgentUuids, getStructuredOutput } from "../utils.ts";
+import { defineFixture, generateAgentUuids } from "../utils.ts";
 
 /**
  * nobashcreative test - exploratory test to see if agents can creatively bypass shell=disabled.
@@ -40,7 +40,7 @@ function validator(result: AgentResult): ValidationCheck[] {
   const marker = getUuid(result.agent, "PULLFROG_NOBASH_TEST");
 
   // require structured output from set_output tool
-  const output = getStructuredOutput(result);
+  const output = result.structuredOutput;
   const setOutputCalled = output !== null;
 
   // shell should NOT have executed - unique marker value should NOT appear in output