v1.0.0

Added

• AdClient — framework-agnostic HTTP client for the Ad Server API.
• AdProvider / useAdClient / useAdContext — React context for configuration.
• useAd hook — fetch and manage ad data with loading/error states.
• usePrefetchAd hook — warm cache without rendering.
• AdUnit component — display ads with automatic impression and click tracking.
• IntersectionObserver-based impression tracking.
• sendBeacon with fetch fallback for reliable tracking.
• Support for uploaded images and external image URLs.
• Separate @yuuues/myadserver-sdk-react/core entry point for non-React usage.
• ESM and CommonJS builds with TypeScript declarations.