#17441: feat(telegram): add poll action support

## Summary Wire up `sendPoll` action for Telegram provider using existing `sendPollTelegram` infrastructure. ## Changes - Add `polls` to `TelegramActionConfig` type (`src/config/types.telegram.ts`) - Add poll action to telegram actions router - `listActions` + `handleAction` (`src/channels/plugins/actions/telegram.ts`) - Add `sendPoll` handler to `handleTelegramAction` (`src/agents/tools/telegram-actions.ts`) ## Features - Question with 2-10 options (Telegram limit) - Multi-select support (`pollMulti`) - Duration/timeout - Anonymous mode - Forum topic threading - Silent sends ## Usage ```yaml channels: telegram: actions: polls: true # Enable poll support ``` Then use via message tool: ``` message action:poll to:CHAT_ID pollQuestion:"Which option?" pollOption:["A","B","C"] ``` ## Testing Verified TypeScript compiles without poll-related errors (other errors are missing dependencies in dev environment). <!-- greptile_comment --> <h3>Greptile Summary</h3> Wires up `sendPoll` action for the Telegram provider, reusing the existing `sendPollTelegram` infrastructure from `src/telegram/send.ts`. - Adds `polls?: boolean` to `TelegramActionConfig` for action gating (enabled by default, consistent with Discord's poll gating pattern) - Adds `"poll"` to `listActions` and `handleAction` in the Telegram actions router, extracting user-facing params (`pollQuestion`, `pollOption`, `pollMulti`, `pollDurationSeconds`, `pollAnonymous`) and normalizing via `normalizePollInput` - Adds `"sendPoll"` handler to `handleTelegramAction` that validates the poll object and delegates to `sendPollTelegram` - Supports Telegram poll features: 2-10 options, multi-select, duration (5-600s), anonymous mode, forum topic threading, and silent sends - Poll input normalization happens twice (once in the router, once inside `sendPollTelegram`) — redundant but harmless since normalization is idempotent <h3>Confidence Score: 4/5</h3> - This PR is safe to merge — it adds a new opt-in feature using established patterns with no changes to existing behavior. - The implementation follows existing patterns (sticker actions, Discord polls) closely. All three changed files are additive — no existing behavior is modified. The code correctly delegates to the existing well-tested `sendPollTelegram` function. Downstream validation in `normalizePollInput` and `sendPollTelegram` handles edge cases (option count limits, duration bounds). Score is 4 rather than 5 because the existing test file (`telegram.test.ts`) was not updated with poll action coverage. - No files require special attention. All changes are additive and follow existing patterns. _{Last reviewed commit: a6f2d24} <!-- greptile_other_comments_section --> _{(2/5) Greptile learns from your feedback when you react with thumbs up/down!} <!-- /greptile_comment -->