Function handleReactionAdded

server/src/addie/bolt-app.ts:4762–5041

* Handle reaction_added events * When users react to Addie's messages, interpret the reaction as input: * - Thumbs up / check = "yes, proceed" or positive feedback * - Thumbs down / X = "no, don't do that" or negative feedback

({
  event,
  context,
}: SlackEventMiddlewareArgs<'reaction_added'> & { context: { botUserId?: string } })

 * - Thumbs down / X = "no, don't do that" or negative feedback
 */
async function handleReactionAdded({
  event,
  context,
}: SlackEventMiddlewareArgs<'reaction_added'> & { context: { botUserId?: string } }): Promise<void> {
  if (!claudeClient || !boltApp) {
    return;
  }

  // Use boltApp.client for API calls
  const client = boltApp.client;

  const reaction = event.reaction;
  const reactingUserId = event.user;
  const itemChannel = event.item.channel;
  const itemTs = event.item.ts;
  const itemUser = event.item_user; // Who authored the message that received the reaction

  // Only process reactions on Addie's messages
  if (!context.botUserId || itemUser !== context.botUserId) {
    return;
  }

  // Check for weekly digest approval (white_check_mark on digest review message)
  if (reaction === 'white_check_mark') {
    const handled = await handleDigestApproval(reactingUserId, itemChannel, itemTs);
    if (handled) return;
  }

  // Check for weekly digest regeneration (🔄 on digest review message)
  if (reaction === 'arrows_counterclockwise') {
    const handled = await handleDigestRegenerate(reactingUserId, itemChannel, itemTs);
    if (handled) return;
  }

  // Check if this is a meaningful reaction (positive or negative)
  const isPositive = POSITIVE_REACTIONS.has(reaction);
  const isNegative = NEGATIVE_REACTIONS.has(reaction);

  if (!isPositive && !isNegative) {
    // Not a reaction we care about
    return;
  }

  logger.info(
    { reaction, isPositive, isNegative, reactingUserId, itemChannel, itemTs },
    'Addie Bolt: Received reaction on Addie message'
  );

  const startTime = Date.now();
  const threadService = getThreadService();

  // Build external ID to find the thread
  // For thread replies, itemTs is the reply ts; we need to find the thread
  // First, try to get the message to find its thread_ts
  let threadTs = itemTs;
  try {
    const result = await client.conversations.replies({
      channel: itemChannel,