* feat(plugins): enforce declared Paseo version requirements
Treat manifests without a Paseo requirement as pre-0.8 plugins so the first breaking plugin release offers an explicit migration path. Check the daemon and app independently before plugin execution, and preserve installed Git revisions when updates are incompatible.
* fix(nix): refresh dependency hash for plugin requirements
* refactor(plugins): validate test manifest inputs and name compatibility input
Plugins can transform live timeline source items at render time, append durable plugin rows from daemon handlers, and register client-only slash commands in the composer.
Related to #3940 and #3952.