feat: introduce web dashboard with multi-bot management

- add Discord OAuth2 authentication
- allow users to register their bots via token
- implement dynamic bot start/stop system
- store bots in database (multi-tenant)
- replace single-bot env setup with scalable architecture

apps/bot/scripts/copyLegacyLocales.mjs

@@ -0,0 +1,22 @@
+import { copyFileSync, existsSync, mkdirSync, readdirSync } from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const SCRIPT_DIR = path.dirname(fileURLToPath(import.meta.url));
+const BOT_DIR = path.resolve(SCRIPT_DIR, "..");
+const SOURCE_DIR = path.join(BOT_DIR, "src", "legacy", "i18n");
+const TARGET_DIR = path.join(BOT_DIR, "dist", "legacy", "i18n");
+
+if (!existsSync(SOURCE_DIR)) {
+	throw new Error(`[i18n] source locale directory not found: ${SOURCE_DIR}`);
+}
+
+mkdirSync(TARGET_DIR, { recursive: true });
+
+for (const fileName of readdirSync(SOURCE_DIR)) {
+	if (!fileName.endsWith(".json")) {
+		continue;
+	}
+
+	copyFileSync(path.join(SOURCE_DIR, fileName), path.join(TARGET_DIR, fileName));
+}