Merge explicit ports with route-allocated ports during deploy

Previously, explicit port mappings from the service definition were
ignored when routes were present. Now both are included, allowing
services to have stable external port bindings alongside dynamic
route-allocated ports.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

internal/agent/deploy.go

@@ -134,7 +134,8 @@ func (a *Agent) deployComponent(ctx context.Context, serviceName string, cs *mcp
 				Error: fmt.Sprintf("allocate route ports: %v", err),
 			}
 		}
-		runSpec.Ports = ports
+		// Merge explicit ports from the spec with route-allocated ports.
+		runSpec.Ports = append(cs.GetPorts(), ports...)
 		runSpec.Env = append(runSpec.Env, env...)
 	} else {
 		// Legacy: use ports directly from the spec.