Refactor embed handling and enhance user experience across components

- Integrated the new `buildEmbedFromPayload` function in Scheduler, Tags, and Welcome components to streamline embed creation and management.
- Updated validation schemas to require embed content checks, ensuring robust data integrity for embeds.
- Enhanced localization files to include new placeholder descriptions and improve user guidance for embed fields.
- Refactored embed parsing logic to utilize the `WelcomeEmbedSchema`, improving consistency and validation across the application.

apps/bot/src/modules/scheduler/service.ts

@@ -1,5 +1,4 @@
 import {
-  EmbedBuilder,
   PermissionFlagsBits,
   type GuildTextBasedChannel,
   type MessageCreateOptions,
@@ -8,6 +7,7 @@ import {
 import { WelcomeEmbedSchema, expandBracketChannelMentions, t, tf } from '@nexumi/shared';
 import type { ScheduledMessage } from '@prisma/client';
 import { ensureGuild } from '../../guild.js';
+import { buildEmbedFromPayload } from '../../lib/embed-payload.js';
 import { logger } from '../../logger.js';
 import { scheduleQueue } from '../../queues.js';
 import type { BotContext } from '../../types.js';
@@ -94,18 +94,9 @@ export function buildAnnouncementPayload(schedule: {
   rolePingId: string | null;
 }): MessageCreateOptions {
   const embedData = parseStoredEmbed(schedule.embed);
-  const embeds: EmbedBuilder[] = [];
-
-  if (embedData) {
-    const embed = new EmbedBuilder().setColor(embedData.color ?? 0x6366f1);
-    if (embedData.title) {
-      embed.setTitle(expandBracketChannelMentions(embedData.title));
-    }
-    if (embedData.description) {
-      embed.setDescription(expandBracketChannelMentions(embedData.description));
-    }
-    embeds.push(embed);
-  }
+  const embed = buildEmbedFromPayload(embedData, {
+    renderText: expandBracketChannelMentions
+  });
 
   const baseContent = expandBracketChannelMentions(schedule.content?.trim() ?? '');
   const roleMention = schedule.rolePingId ? `<@&${schedule.rolePingId}>` : '';
@@ -115,8 +106,8 @@ export function buildAnnouncementPayload(schedule: {
   if (content) {
     payload.content = content;
   }
-  if (embeds.length > 0) {
-    payload.embeds = embeds;
+  if (embed) {
+    payload.embeds = [embed];
   }
   if (schedule.rolePingId) {
     payload.allowedMentions = { roles: [schedule.rolePingId] };