Runtime contract

• The package-manager entry is pure ESM; the CDN entry is a separately minified IIFE.
• ES2022 modern browsers and WebViews.
• Vue 3.5.11 or newer through a required peer dependency.
• uni-app through call-time detection of runtime-injected uni and App-Plus plus, with global-property fallbacks.
• No import-time access to window, Storage, or uni; unsupported calls fail explicitly.
• Web Crypto, URL, Intl, TextEncoder, and related platform capabilities are not polyfilled.