Adds the Update URI guard pattern so one source tree produces two
compliant build artifacts:
* Gitea install (default): `Update URI:` header points at
git.davidtkeane.com → wp.org skips this plugin → self-hosted
updater runs normally.
* WordPress.org submission zip (build script strips that line):
header is empty → `radio_should_skip_custom_updater()` returns
true → entire updater file short-circuits at load time → wp.org
takes over update delivery as guideline 8 requires.
Settings page now guards the Updates panel render with
`function_exists()` because the panel function only exists when
the updater was allowed to load.
Also adds a dedicated `== Privacy ==` section to readme.txt
covering every outbound connection (none from the plugin itself;
SomaFM audio + 30s songs.json poll while playing) and adds an
explicit link to SomaFM's terms of use (somafm.com/legal/).
No user-visible behaviour change in either distribution.
ranger
a9d76decae