perf: tune selfbot runtime defaults

Apply low-memory client options and point the workspace vendor package at the optimized selfbot internals for more stable long-running moderation capture.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/discordClientOptions.ts

@@ -0,0 +1,21 @@
+import { type ClientOptions, Options } from "discord.js-selfbot-v13";
+
+export function createDiscordClientOptions(): ClientOptions {
+  return {
+    makeCache: Options.cacheWithLimits({
+      ...Options.defaultMakeCacheSettings,
+      MessageManager: 25,
+      ReactionManager: 0,
+      ReactionUserManager: 0,
+      PresenceManager: 0,
+    }),
+    partials: ["USER", "CHANNEL", "GUILD_MEMBER", "MESSAGE"],
+    sweepers: {
+      messages: { interval: 300, lifetime: 600 },
+      threads: { interval: 3600, lifetime: 14400 },
+    },
+    restRequestTimeout: 15_000,
+    retryLimit: 2,
+    restGlobalRateLimit: 45,
+  };
+}