* started chat protocol
* text message example
* events json
* same style comments
* jsonc
* num for rendering
* try to fix comment rendering
* revert num
* chat protocol: make msg params closer to types
* AppMessage type
* combine new and old simplexmq dependencies
* json parsers
* version-compatible types for connection requests
* more parsers
* remove import
* decode/encode from/to AppMessage
* make group invitation a property in params
* switch chat to the new agent
* remove "compatibility" attempt
* new JSON encoding for chat messages
* simplexmq from github
* update MsgContent name
Co-authored-by: Efim Poberezkin <8711996+efim-poberezkin@users.noreply.github.com>