wrCopyToClipboard

Copies the bound string on host click. navigator.clipboard.writeText where it exists, with a hidden-textarea + execCommand recovery for non-secure contexts. (copied) fires only once the write actually lands; a refusal — denied permission, an unfocused document, no clipboard at all — is a (copyFailed), never a silent success, and focus goes back to whatever held it before the fallback selected its textarea.