feat(update): add update deployment via web UI

- Deploy exe to alternate port 5033
- Current instance keeps running
- Add parallel mode and addr flag
- Add update panel to web UI
- Update OpenAPI spec and CLI

lib/update/update_test.go

@@ -0,0 +1,13 @@
+package update
+
+import (
+	"bytes"
+	"testing"
+)
+
+func TestDeployRejectsNonPE(t *testing.T) {
+	_, _, err := Deploy("0.0.0.0:5032", bytes.NewReader([]byte("not-exe")))
+	if err == nil {
+		t.Fatal("expected error")
+	}
+}