v1.0.0 of xue_hua_media_info

Read image EXIF and video/audio metadata via nom-exif (Flutter Rust Bridge FFI plugin). Changelog excerpt: First public release. / 首次公开发布。 ### Core / 核心能力 - Flutter FFI plugin backed by nom-exif3.6.1 and flutter_rust_bridge2.12 — pure Rust, no FFmpeg or libexif - 基于 nom-exif 3.6.1 与 flutter_rust_bridge 2.12 的 Flutter FFI 插件，纯 Rust 实现，无 FFmpeg、libexif 等系统依赖 - Unified entry point XueHuaMediaInfowith initialize()for one-time native setup - 统一入口 XueHuaMediaInfo，通过 initialize()一次[...]