feat: add /model command for runtime model switching via Telegram#139

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bOsowski wants to merge 3 commits intoRichardAtCT:mainfrom

bOsowski:feat/model-command

Commits on Mar 7, 2026

feat: add /model command for runtime model switching via Telegram
bOsowski
committed
fix: address PR review — audit logging, media handler, input validation
bOsowski
committed
fix: distinguish model set vs reset in audit log
bOsowski
committed