refactor: unify markdown formatting pipeline

src/slack/monitor/replies.ts

@@ -1,8 +1,8 @@
-import { chunkMarkdownText } from "../../auto-reply/chunk.js";
 import { createReplyReferencePlanner } from "../../auto-reply/reply/reply-reference.js";
 import { isSilentReplyText, SILENT_REPLY_TOKEN } from "../../auto-reply/tokens.js";
 import type { ReplyPayload } from "../../auto-reply/types.js";
 import type { RuntimeEnv } from "../../runtime.js";
+import { markdownToSlackMrkdwnChunks } from "../format.js";
 import { sendMessageSlack } from "../send.js";
 
 export async function deliverReplies(params: {
@@ -14,7 +14,6 @@ export async function deliverReplies(params: {
   textLimit: number;
   replyThreadTs?: string;
 }) {
-  const chunkLimit = Math.min(params.textLimit, 4000);
   for (const payload of params.replies) {
     const threadTs = payload.replyToId ?? params.replyThreadTs;
     const mediaList = payload.mediaUrls ?? (payload.mediaUrl ? [payload.mediaUrl] : []);
@@ -22,15 +21,13 @@ export async function deliverReplies(params: {
     if (!text && mediaList.length === 0) continue;
 
     if (mediaList.length === 0) {
-      for (const chunk of chunkMarkdownText(text, chunkLimit)) {
-        const trimmed = chunk.trim();
-        if (!trimmed || isSilentReplyText(trimmed, SILENT_REPLY_TOKEN)) continue;
-        await sendMessageSlack(params.target, trimmed, {
-          token: params.token,
-          threadTs,
-          accountId: params.accountId,
-        });
-      }
+      const trimmed = text.trim();
+      if (!trimmed || isSilentReplyText(trimmed, SILENT_REPLY_TOKEN)) continue;
+      await sendMessageSlack(params.target, trimmed, {
+        token: params.token,
+        threadTs,
+        accountId: params.accountId,
+      });
     } else {
       let first = true;
       for (const mediaUrl of mediaList) {
@@ -130,7 +127,7 @@ export async function deliverSlackSlashReplies(params: {
       .filter(Boolean)
       .join("\n");
     if (!combined) continue;
-    for (const chunk of chunkMarkdownText(combined, chunkLimit)) {
+    for (const chunk of markdownToSlackMrkdwnChunks(combined, chunkLimit)) {
       messages.push(chunk);
     }
   }