fix(telegram): preserve retry-after on sends - #77403
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What changed
retry_aftervalues, including timedelta-compatible values, before inline send retriesSendResultWhy
Telegram sends retry flood-control responses inline. When all inline attempts fail, the adapter previously discarded
retry_after; the outer delivery layer could then use its short generic network backoff instead of Telegram's server-requested delay and immediately hit flood control again.This PR is intentionally limited to ordinary text sends. It does not change media, edit, or streaming fallback policy.
Validation
uv run --extra messaging --extra dev pytest -q tests/gateway/test_telegram_final_delivery.pyuv run ruff check plugins/platforms/telegram/adapter.py tests/gateway/test_telegram_final_delivery.pygit diff --check