feat: modernize and harden bot deployment

src/award_message.ts

@@ -1,24 +1,27 @@
-import { EmbedBuilder, MessageReaction, PartialMessageReaction } from 'discord.js';
+import { EmbedBuilder, MessageReaction, PartialMessageReaction } from "discord.js";
+
+export default function awardEmbed(
+  reaction: MessageReaction | PartialMessageReaction,
+  score: number,
+): EmbedBuilder {
+  const message = reaction.message;
+  const reactionSummary = message.reactions.cache
+    .map((item) => `${item.emoji} ×${item.count}`)
+    .join(" · ");
 
-export default function awardEmbed(reaction: MessageReaction | PartialMessageReaction, score: number) {
-  function formatTime(time: Date) {
-    const yyyy = time.getFullYear();
-    const mm = time.getMonth().toString().padStart(2, '0');
-    const dd = time.getDate().toString().padStart(2, '0');
-    const hh = time.getHours().toString().padStart(2, '0');
-    const MM = time.getMinutes().toString().padStart(2, '0');
-    return `${yyyy}-${mm}-${dd} ${hh}:${MM}`;
-  }
   return new EmbedBuilder()
     .setColor(0x777777)
     .setAuthor({
-      name: reaction.message.author?.displayName || "unknown",
-      iconURL: reaction.message.author?.avatarURL() || undefined,
+      name: message.author?.displayName || "Unknown user",
+      iconURL: message.author?.avatarURL() || undefined,
     })
-    .setDescription(reaction.message.content || null)
-    .setThumbnail(reaction.message.attachments.filter((attachment) => !(!attachment.height && !attachment.width)).first()?.url || null)
+    .setDescription(message.content || null)
+    .setThumbnail(
+      message.attachments.find((attachment) => attachment.height || attachment.width)?.url ?? null,
+    )
     .addFields({
-      name: `${reaction.message.reactions.cache.map((reaction) => `${reaction.emoji} x${reaction.count},`).join(' ')} / ${score.toFixed(1)}`,
-      value: `${reaction.message.url} • ${formatTime(reaction.message.createdAt)}\n-# ${reaction.message.id}`,
+      name: `${reactionSummary} / ${score.toFixed(1)}`.slice(0, 256),
+      value: `${message.url} • <t:${Math.floor(message.createdTimestamp / 1000)}:f>`,
     })
-}
+    .setFooter({ text: `Source message: ${message.id}` });
+}