Align docs, examples, and tests with AppData and NoData
Update handler, scene, runner, and plugin generics to the new naming
Ignore .codex and record the cleanup in the changelog
add wiki links to README and README_RU
fill Start here pages for setup, commands/plugins, and MsgContext
add wiki page-priority tracker and local wiki AGENTS rules
Implemented full tgapi method coverage from Telegram docs, aligned numeric ID/file_size types, and fixed method signatures/JSON tags.; Standardized GoDoc across exported APIs with Telegram links and refreshed README sections for MsgContext plus API/Uploader usage.