docs: synchronize installation recovery with public releases
docs: publish Package 0.2.2 Windows system update guide
docs: record Core 0.2.1 reload recovery release
Document released backend system updates and verified recovery
docs: maintain upload component guides in wiki
docs: make plugin updates discoverable and keep detailed references in wiki
完善安装配置、部署排障与版本范围文档
Move SandAdmin changelog to wiki
Migrate SandAdmin documentation from source tree
Initialize SandAdmin documentation wiki