sendChatMessage posts to a one-to-one, group, or meeting chat identified by
chatId.
Example
automations/send-teams-chat-message.automation.ts
Inputs
chatId and body are required. bodyType is "text" | "html" and defaults
to "text"; HTML must use Teams-supported markup. Optional account selects
the Microsoft binding.
Output
Returns the created normalizedTeamsChatMessage, including its new
messageId, body, and any provider-generated sender, timestamp, URL, and other
metadata.