Implement platform management features

platform/service/distribution_build_execution.go

@@ -66,7 +66,17 @@ func (svc *CoreService) enqueueDistributionBuild(job domain.Job) {
 			delete(svc.distributionBuilds, job.ID)
 			svc.distributionBuildMu.Unlock()
 		}()
-		_ = svc.executeDistributionBuild(job)
+		defer func() {
+			if recover() != nil {
+				_ = svc.failDistributionBuildJob(job, "platform builder failed unexpectedly")
+			}
+		}()
+		if err := svc.executeDistributionBuild(job); err != nil {
+			// executeDistributionBuild may fail after persisting the running state.
+			// A second terminalization attempt is idempotent when the specific
+			// failure path already marked the job failed.
+			_ = svc.failDistributionBuildJob(job, "platform builder failed before completion")
+		}
 	}()
 }
 
@@ -99,7 +109,7 @@ func (svc *CoreService) executeDistributionBuild(job domain.Job) error {
 		payload, buildErr = builder.Build(input)
 	}
 	if buildErr != nil {
-		return svc.failDistributionBuildJob(job, builderJobFailureMessage(buildErr))
+		return svc.failDistributionBuildJob(job, builderJobFailureMessage(buildErr, input.AuthKey))
 	}
 	if _, err := svc.platformDistributionBuildInput(job); err != nil {
 		return svc.failDistributionBuildJob(job, "platform builder discarded output because the component key is no longer current")