refactor(src): split oversized modules

src/discord/monitor/format.ts

@@ -0,0 +1,37 @@
+import type { Guild, User } from "@buape/carbon";
+
+export function resolveDiscordSystemLocation(params: {
+  isDirectMessage: boolean;
+  isGroupDm: boolean;
+  guild?: Guild;
+  channelName: string;
+}) {
+  const { isDirectMessage, isGroupDm, guild, channelName } = params;
+  if (isDirectMessage) return "DM";
+  if (isGroupDm) return `Group DM #${channelName}`;
+  return guild?.name ? `${guild.name} #${channelName}` : `#${channelName}`;
+}
+
+export function formatDiscordReactionEmoji(emoji: {
+  id?: string | null;
+  name?: string | null;
+}) {
+  if (emoji.id && emoji.name) {
+    return `${emoji.name}:${emoji.id}`;
+  }
+  return emoji.name ?? "emoji";
+}
+
+export function formatDiscordUserTag(user: User) {
+  const discriminator = (user.discriminator ?? "").trim();
+  if (discriminator && discriminator !== "0") {
+    return `${user.username}#${discriminator}`;
+  }
+  return user.username ?? user.id;
+}
+
+export function resolveTimestampMs(timestamp?: string | null) {
+  if (!timestamp) return undefined;
+  const parsed = Date.parse(timestamp);
+  return Number.isNaN(parsed) ? undefined : parsed;
+}