fix: surface AgentRun event payload summaries

scripts/agentrun-cli-contract-test.ts

@@ -123,6 +123,16 @@ assertCondition(
   "AgentRun logs must map --tail N into render-only client tailing for human and raw outputs",
 );
 
+assertCondition(
+  agentRunSource.includes("function agentRunEventSummary(item: Record<string, unknown>, payload: Record<string, unknown>): string")
+    && agentRunSource.includes("push(payload.failureKind)")
+    && agentRunSource.includes("push(error.message)")
+    && agentRunSource.includes("push(error.additionalDetails)")
+    && agentRunSource.includes("push(payload.phase)")
+    && agentRunSource.includes("function agentRunEventCommandId(item: Record<string, unknown>, payload: Record<string, unknown>): string"),
+  "AgentRun logs/events must render payload error, backend phase, and command id summaries by default",
+);
+
 assertCondition(
   agentRunSource.includes("function rerunWithoutDryRun(command: string): string")
     && agentRunSource.includes("options.dryRun ? [rerunWithoutDryRun(command)] : undefined"),
@@ -146,6 +156,7 @@ console.log(JSON.stringify({
     "AgentRun resource task dispatch and active task list visibility",
     "AgentRun resource failure output is visible in human mode",
     "AgentRun logs tail is enforced by the render-only client",
+    "AgentRun logs/events expose payload error and backend phase summaries",
     "AgentRun dry-run mutations keep resource-command follow-up",
   ],
 }));