feat(topdata): resolve accessory VFX from cdn_channel inside Crucible

internal/topdata/parts_manifest.go

@@ -274,6 +274,19 @@ func writePartsManifestCache(path string, manifest *partsManifest) error {
 	return nil
 }
 
+// httpGetStatus performs an anonymous GET and returns the status code plus the
+// body (capped). No auth header: cdn_channel inputs (channels.json, vfxs.yml,
+// haks.json) are public CDN text — R1.
+func httpGetStatus(target string) (int, []byte, error) {
+	resp, err := partsManifestHTTPClient.Get(target)
+	if err != nil {
+		return 0, nil, err
+	}
+	defer resp.Body.Close()
+	body, _ := io.ReadAll(io.LimitReader(resp.Body, 8<<20))
+	return resp.StatusCode, body, nil
+}
+
 func inventoryFromPartsManifest(manifest *partsManifest) map[string]map[int]struct{} {
 	result := make(map[string]map[int]struct{}, len(supportedPartCategories))
 	for _, category := range supportedPartCategories {