Function handleConfig

banana/banana.ts:208–289

(
  msg: Api.Message,
  subcommand: string,
  subValue: string,
)

        });
        return;
      }
      await setConfigValue("apiKey", subValue.trim());
      await msg.edit({ text: "✅ 已更新 Gemini API Key" });
      return;
    }
    case "limit": {
      if (!subValue) {
        const current = await resolveMaxImageBytes();
        await msg.edit({
          text: `当前图片大小上限：${formatBytes(current)}（范围 ${formatBytes(MIN_ALLOWED_IMAGE_BYTES)} - ${formatBytes(MAX_ALLOWED_IMAGE_BYTES)}）\n使用 <code>${mainPrefix}banana limit default</code> 可恢复默认值`,
          parseMode: "html",
        });
        return;
      }

      const lowered = subValue.trim().toLowerCase();
      if (lowered === "default" || lowered === "reset") {
        await setConfigValue("maxBytes", DEFAULT_MAX_IMAGE_BYTES);
        await msg.edit({
          text: `✅ 已恢复默认图片大小上限 ${formatBytes(DEFAULT_MAX_IMAGE_BYTES)}`,
        });
        return;
      }

      const parsed = parseSizeInput(subValue);
      if (parsed === null) {
        await msg.edit({
          text: "❌ 无法识别的大小，请使用如 `8`, `8MB`, `2048KB`、`0.5GB` 等格式。",
        });
        return;
      }

      if (parsed < MIN_ALLOWED_IMAGE_BYTES) {
        await msg.edit({
          text: `❌ 数值过小，最小支持 ${formatBytes(MIN_ALLOWED_IMAGE_BYTES)}`,
        });
        return;
      }

      if (parsed > MAX_ALLOWED_IMAGE_BYTES) {
        await msg.edit({
          text: `❌ 数值过大，最大支持 ${formatBytes(MAX_ALLOWED_IMAGE_BYTES)}`,
        });
        return;
      }

      await setConfigValue("maxBytes", parsed);
      await msg.edit({
        text: `✅ 已将图片大小上限设置为 ${formatBytes(parsed)}`,
      });
      return;
    }
    case "config": {
      const [apiKey, maxBytes] = await Promise.all([
        getConfigValue("apiKey"),
        resolveMaxImageBytes(),
      ]);
      await msg.edit({