- Root README: add Linux x64 + ARM64 download targets, update release
assets table, document background scheduler differences per OS,
add wemo-core shared package description, use repo name dibby-wemo-manager
- apps/desktop README: full rewrite covering Windows installer/portable,
Linux AppImage/.deb/.rpm (x64 + ARM64), all build commands per OS,
data storage paths per OS, requirements table
- packages/wemo-core: new README documenting all exports, constants,
helper functions, day number convention, sun sentinel codes
- about.html: fix version string from "2.0" to "2.0.0"
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>