Inline error type checks in agent-run handler

Drop the isType helper that merely discarded the value already
returned by errors.AsType and inline the suspend and interrupt
checks directly into the result-handling branch.

Signed-off-by: Bryan Frimin <bryan@probo.com>

pkg/agentrun/handler.go

@@ -197,16 +197,13 @@ func (h *handler) executeRun(ctx context.Context, run *coredata.AgentRun) error
 	// interruption parks it in AWAITING_APPROVAL until an approval
 	// decision requeues it. Anything else is a genuine failure.
 	if runErr != nil {
-		switch {
-		case isType[*agent.SuspendedError](runErr):
+		if _, ok := errors.AsType[*agent.SuspendedError](runErr); ok {
 			run.Status = coredata.AgentRunStatusPending
 			runErr = nil
-
-		case isType[*agent.InterruptedError](runErr):
+		} else if _, ok := errors.AsType[*agent.InterruptedError](runErr); ok {
 			run.Status = coredata.AgentRunStatusAwaitingApproval
 			runErr = nil
-
-		default:
+		} else {
 			run.Status = coredata.AgentRunStatusFailed
 			run.Result = nil
 
@@ -257,9 +254,3 @@ func (h *handler) executeRun(ctx context.Context, run *coredata.AgentRun) error
 
 	return runErr
 }
-
-func isType[T error](err error) bool {
-	_, ok := errors.AsType[T](err)
-
-	return ok
-}