Summary

• parse quoted context from external_reply in addition to reply_to_message
• read quote text from message.quote, reply_to_message.quote, and external_reply.quote
• keep reply_to_message_id threading for outbound Telegram sends and stop emitting reply_parameters.quote to avoid Bot API QUOTE_TEXT_INVALID

Why

Telegram partial-quote replies can come through external_reply, which previously dropped quoted text from model context. Also, sending quoted replies via reply_parameters.quote is fragile and can fail whole deliveries with 400 QUOTE_TEXT_INVALID.

Tests

• updated delivery test to assert threaded replies use reply_to_message_id even when quote text exists
• added bot test for partial quotes delivered via external_reply

Notes

I could not finish full test suite on this host in-session (dependency install was long), so this is smoke-validated in a live Telegram channel and covered by targeted test updates.

Greptile Overview

Greptile Summary

This PR improves Telegram quote/reply handling in two ways:

• Inbound: describeReplyTarget now derives quoted context not only from message.quote, but also from reply_to_message.quote and external_reply.quote, and falls back to text/caption/media placeholders from the reply-like object (reply_to_message or external_reply).
• Outbound: delivery no longer uses Telegram’s reply_parameters.quote (which can trigger QUOTE_TEXT_INVALID), and always threads replies via reply_to_message_id when a reply target exists.

Test updates cover partial quotes delivered via external_reply and assert that outbound threading sticks to reply_to_message_id even when quote text is present.

Confidence Score: 5/5

• This PR is safe to merge with minimal risk.
• Changes are narrowly scoped to Telegram reply/quote parsing and outbound send parameters, with targeted tests updated/added for the new inbound external_reply path and the outbound behavior change (dropping reply_parameters). No runtime errors or broken call sites were found in the modified files.
• No files require special attention

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