Merge pull request chigwell#98 from amprotopopov-a11y/fix/robust-ensu…

…re-connected

fix: robust ensure_connected() — verify with ping, force reconnect on stale TCP

Merge pull request chigwell#97 from bunkerskyi/feat/send-contact

feat(tools): add send_contact tool to send phone contacts via Telegram

Merge pull request chigwell#95 from bunkerskyi/fix/inline-buttons-rep…

…ly-markup-fallback

fix(tools): fall back to reply_markup when buttons property is None for bot messages

Merge pull request chigwell#96 from bunkerskyi/fix/get-messages-json-…

…output

fix(tools): escape newlines in get_messages output to preserve line-based format

Merge pull request chigwell#94 from DzmingLi/fix/graceful-disconnect

fix: gracefully disconnect Telegram client on exit

Merge pull request chigwell#86 from jonasasx/fix/download-media-exten…

…sion-detection

fix: strip extension in download_media to auto-detect real file type

Merge pull request chigwell#84 from dsvetlov/feat/unread-mentions-count

feat: show unread mentions count in list_chats output

Merge pull request chigwell#78 from dsvetlov/feat/list-chats-filters

feat: add unread_only, unmuted_only filters and mute status to list_chats

Merge pull request chigwell#80 from chigwell/chigwell-patch-3

Merge pull request chigwell#77 from nathanschram/fix/entity-resolutio…

…n-stringsession

fix: resolve entity cache miss for StringSession users