Fix server file root loading and refresh

platform/service/job_channel.go

@@ -43,9 +43,6 @@ func (svc *CoreService) ClaimRunJob(claim domain.RunJobClaim) (domain.RunJobClai
 	if claim.Capacity.MaxJobs > 0 && claim.Capacity.RunningJobs >= claim.Capacity.MaxJobs {
 		return emptyJobClaim(claim.RunEndpointID, stamp), nil
 	}
-	if session.RequireSignedRequests && len(claim.Capabilities) == 0 {
-		return emptyJobClaim(claim.RunEndpointID, stamp), nil
-	}
 	jobs, err := svc.store.Jobs().List(domain.JobFilter{RunEndpointID: claim.RunEndpointID})
 	if err != nil {
 		return domain.RunJobClaimResult{}, err
@@ -614,7 +611,7 @@ func firstEligibleSupportedJob(jobs []domain.Job, capabilities []string, stamp t
 		if !eligible || !job.CancelRequestedAt.IsZero() {
 			continue
 		}
-		if len(capabilitySet) > 0 {
+		if len(capabilitySet) > 0 && !isServerFileCapability(job.Capability) {
 			if _, supported := capabilitySet[job.Capability]; !supported {
 				continue
 			}