Thanks for taking the time to open a feature request!

Is your feature request related to a problem? Please describe.
no MiniMessage support (i actually didnt find it in the wiki. if it already supports please let me know?)

Describe the solution you'd like
it could probably look like this

interact:
- "message:[minimsg]<click:run_command:test><hover:show_text:"click to say test"><gradient:#9BCD9B:#FFE4E1>a hover message test</gradient></click></hover>"
im not very expressive, but i think you should know what i want

Describe alternatives you've considered
console:ap send %player_name% This is a command by "AnnouncerPlus" plugin. :P

Additional context
nope

almost. but minimessages are actually easier to express.
https://github.com/KyoriPowered/adventure

i edited the markdown snippet. to avoid not being able to display <>.

So basically you want JSON support for messages correct?