diff --git a/.env.example b/.env.example
index 8ce56a2..2474423 100644
--- a/.env.example
+++ b/.env.example
@@ -2,6 +2,9 @@
 LX_DB_PASSWORD=replace-with-strong-database-password
 LX_JWT_SECRET=replace-with-at-least-32-random-characters
 LX_WEB_PORT=8088
+DEBIAN_MIRROR=https://deb.debian.org/debian
+DEBIAN_SECURITY_MIRROR=https://deb.debian.org/debian-security
+FFMPEG_BINARIES_URL=https://github.com/eugeneware/ffmpeg-static/releases/download
 
 # DeepSeek Anthropic-compatible API
 DEEPSEEK_API_KEY=replace-with-rotated-deepseek-key
@@ -20,6 +23,8 @@ TELEGRAM_WEBHOOK_SECRET=replace-with-random-webhook-secret
 WHATSAPP_GATEWAY_TOKEN=replace-with-at-least-32-random-characters
 WHATSAPP_WEBHOOK_SECRET=replace-with-another-32-random-secret
 WHATSAPP_LOG_LEVEL=info
+# 可选。只影响 WhatsApp 网关出站，不设置系统或平台全局代理。
+WHATSAPP_DEFAULT_PROXY_URL=
 
 PUBLIC_WEBHOOK_BASE_URL=http://host.docker.internal:8088
 APP_PUBLIC_URL=http://127.0.0.1:8088
diff --git a/.gitignore b/.gitignore
index 052f9ef..d3aa888 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,6 +28,7 @@ storage/
 *.sqlite3
 *.dump
 *.sql
+!telegram-gateway/docker/scripts/init-db.sql
 *.rdb
 *.binlog
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c0f9085..e8dcd3c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,20 @@
 
 本项目遵循语义化版本。早期版本由经过脱敏的本地源码快照恢复，因此使用带日期的 `snapshot-*` 标签；自 `v1.0.0` 起按正式发布流程维护。
 
+## [Unreleased]
+
+### 新增
+
+- Telegram Gateway 支持环境级默认 SOCKS5/HTTP/MTProto 代理，账号专属绑定仍具有更高优先级。
+- WhatsApp Gateway 支持环境级默认 HTTP/HTTPS 代理，账号专属代理仍可覆盖默认值。
+- 默认代理仅作用于两个消息网关，不改变平台、邮箱、数据库或 Docker 的全局网络出口。
+- Docker 构建支持可配置的 Debian 与 FFmpeg 下载镜像，适配受限网络环境。
+
+### 修复
+
+- 将 Telegram Gateway 首次启动所需的 PostgreSQL 初始化脚本纳入版本控制，避免空数据库因挂载目录而启动失败。
+- Telegram Gateway 本机调试端口改为 `127.0.0.1:3010`，避免与 Gitea 的 `3000` 端口冲突并阻止公网直连管理接口。
+
 ## [1.1.0] - 2026-08-01
 
 ### 新增
diff --git a/Dockerfile b/Dockerfile
index 355a349..137c8ae 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,5 @@
 FROM node:20-alpine AS web-build
+ARG FFMPEG_BINARIES_URL=https://github.com/eugeneware/ffmpeg-static/releases/download
 WORKDIR /app
 COPY package*.json ./
 RUN npm ci
diff --git a/docker-compose.yml b/docker-compose.yml
index 5809e66..e74fc20 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -19,10 +19,14 @@ services:
   whatsapp-gateway:
     build:
       context: ./whatsapp-gateway
+      args:
+        DEBIAN_MIRROR: ${DEBIAN_MIRROR:-https://deb.debian.org/debian}
+        DEBIAN_SECURITY_MIRROR: ${DEBIAN_SECURITY_MIRROR:-https://deb.debian.org/debian-security}
     environment:
       PORT: 3200
       DATA_DIR: /data
       WHATSAPP_GATEWAY_TOKEN: ${WHATSAPP_GATEWAY_TOKEN:?WHATSAPP_GATEWAY_TOKEN is required}
+      WHATSAPP_DEFAULT_PROXY_URL: ${WHATSAPP_DEFAULT_PROXY_URL:-}
       LOG_LEVEL: ${WHATSAPP_LOG_LEVEL:-info}
     volumes:
       - lingxi_whatsapp_data:/data
@@ -89,6 +93,8 @@ services:
     build:
       context: .
       dockerfile: Dockerfile
+      args:
+        FFMPEG_BINARIES_URL: ${FFMPEG_BINARIES_URL:-https://github.com/eugeneware/ffmpeg-static/releases/download}
     ports:
       - "${LX_WEB_PORT:-8088}:80"
     depends_on:
diff --git a/docs/DEPLOYMENT.md b/docs/DEPLOYMENT.md
index e8c9795..ccac9b9 100644
--- a/docs/DEPLOYMENT.md
+++ b/docs/DEPLOYMENT.md
@@ -37,6 +37,24 @@ docker compose logs --tail=100 api whatsapp-gateway web
 
 平台的 `TELEGRAM_GATEWAY_URL` 指向网关 `/api` 地址。生产环境应通过私有网络连接，不把 Gateway 管理接口直接暴露公网。详细配置见 [Telegram Gateway 接入指南](TELEGRAM-GATEWAY.md)。
 
+### 2.1 仅消息网关使用出站代理
+
+生产环境可以创建一个不映射宿主机端口的专用 Docker 网络和 V2Ray/Xray 容器，并只将 Telegram、WhatsApp 网关接入该网络。不要设置 Docker Daemon、宿主机或平台 API 的全局 `HTTP_PROXY`/`HTTPS_PROXY`。
+
+```env
+# Telegram Gateway
+TG_DEFAULT_PROXY_TYPE=socks5
+TG_DEFAULT_PROXY_HOST=lingxi-egress
+TG_DEFAULT_PROXY_PORT=10808
+
+# 平台 WhatsApp Gateway
+WHATSAPP_DEFAULT_PROXY_URL=http://lingxi-egress:10809
+```
+
+账号级代理优先于上述默认代理。代理容器应使用 `internal/external Docker network + no host ports` 的方式隔离；配置文件和认证信息仅保存在服务器受限目录，不进入 Git。上线前至少验证 Telegram API 与 WhatsApp Web 的 HTTPS 连接，并确认 API、数据库、邮箱和 AI 服务未配置全局代理变量。
+
+若部署网络无法访问 Debian 官方源或 FFmpeg GitHub Release，可通过 `.env` 的 `DEBIAN_MIRROR`、`DEBIAN_SECURITY_MIRROR` 和 `FFMPEG_BINARIES_URL` 指定构建镜像；这些变量只影响镜像构建，不改变运行时出口。
+
 ## 3. 生产入口
 
 在 Compose 外层部署 Caddy、Nginx 或云负载均衡：
@@ -49,6 +67,8 @@ docker compose logs --tail=100 api whatsapp-gateway web
 
 将 `APP_PUBLIC_URL` 和 `PUBLIC_WEBHOOK_BASE_URL` 改为正式 HTTPS 地址，随后重建 API。
 
+当前生产拓扑使用 Caddy 与 NPS 时，应在 NPS HTTP Host 中将域名指向平台内网 `8088`，Caddy 只反向代理到 NPS 的本机 HTTP 入口。修改前分别备份 NPS Host 配置和 Caddyfile，验证配置后再重启 NPS、平滑重载 Caddy。
+
 ## 4. 更新
 
 ```bash
diff --git a/docs/TELEGRAM-GATEWAY.md b/docs/TELEGRAM-GATEWAY.md
index bcb8759..c2ff256 100644
--- a/docs/TELEGRAM-GATEWAY.md
+++ b/docs/TELEGRAM-GATEWAY.md
@@ -18,6 +18,7 @@ Copy-Item telegram-gateway/.env.example telegram-gateway/.env
 - `JWT_SECRET`、`ADMIN_API_KEY`：分别生成强随机值，不得复用。
 - `DB_PASSWORD`：生产数据库强密码。
 - `CORS_ORIGINS`：仅填写受信任的管理入口；平台服务端调用不依赖浏览器跨域。
+- `TG_DEFAULT_PROXY_*`：可选的默认 TDLib 代理；账号绑定的专属代理优先。
 
 生产环境不要使用示例中的 `postgres` 密码。`.env` 不得提交 Git。
 
diff --git a/telegram-gateway/.env.example b/telegram-gateway/.env.example
index c89648e..db13fc1 100644
--- a/telegram-gateway/.env.example
+++ b/telegram-gateway/.env.example
@@ -1,5 +1,8 @@
 # Application
 NODE_ENV=development
+# Optional image build mirrors for networks where deb.debian.org is unavailable.
+DEBIAN_MIRROR=https://deb.debian.org/debian
+DEBIAN_SECURITY_MIRROR=https://deb.debian.org/debian-security
 PORT=3000
 APP_NAME=TelegramUserGateway
 CORS_ORIGINS=
@@ -29,6 +32,14 @@ TDLIB_PATH=/usr/local/lib/libtdjson.so
 TG_API_ID=0
 TG_API_HASH=your_api_hash_here
 
+# 可选默认代理。账号未绑定专属代理时使用；只影响 Telegram TDLib 出站。
+TG_DEFAULT_PROXY_TYPE=
+TG_DEFAULT_PROXY_HOST=
+TG_DEFAULT_PROXY_PORT=
+TG_DEFAULT_PROXY_USERNAME=
+TG_DEFAULT_PROXY_PASSWORD=
+TG_DEFAULT_PROXY_SECRET=
+
 # Rate Limiting
 RATE_LIMIT_DEFAULT_TTL=60000
 RATE_LIMIT_DEFAULT_LIMIT=30
diff --git a/telegram-gateway/docker/Dockerfile b/telegram-gateway/docker/Dockerfile
index 52498b4..a6827e5 100644
--- a/telegram-gateway/docker/Dockerfile
+++ b/telegram-gateway/docker/Dockerfile
@@ -1,5 +1,8 @@
 FROM node:20-bookworm-slim AS builder
 
+ARG DEBIAN_MIRROR=https://deb.debian.org/debian
+ARG DEBIAN_SECURITY_MIRROR=https://deb.debian.org/debian-security
+RUN sed -i "s|http://deb.debian.org/debian-security|${DEBIAN_SECURITY_MIRROR}|g; s|http://deb.debian.org/debian|${DEBIAN_MIRROR}|g" /etc/apt/sources.list.d/debian.sources
 RUN apt-get update \
     && apt-get install -y --no-install-recommends g++ make python3 \
     && rm -rf /var/lib/apt/lists/*
@@ -22,6 +25,9 @@ RUN npm prune --omit=dev
 
 FROM node:20-bookworm-slim
 
+ARG DEBIAN_MIRROR=https://deb.debian.org/debian
+ARG DEBIAN_SECURITY_MIRROR=https://deb.debian.org/debian-security
+RUN sed -i "s|http://deb.debian.org/debian-security|${DEBIAN_SECURITY_MIRROR}|g; s|http://deb.debian.org/debian|${DEBIAN_MIRROR}|g" /etc/apt/sources.list.d/debian.sources
 RUN apt-get update \
     && apt-get install -y --no-install-recommends tini ca-certificates \
     && rm -rf /var/lib/apt/lists/*
diff --git a/telegram-gateway/docker/docker-compose.yml b/telegram-gateway/docker/docker-compose.yml
index 6c9e427..cce0f55 100644
--- a/telegram-gateway/docker/docker-compose.yml
+++ b/telegram-gateway/docker/docker-compose.yml
@@ -30,9 +30,12 @@ services:
     build:
       context: ..
       dockerfile: docker/Dockerfile
+      args:
+        DEBIAN_MIRROR: ${DEBIAN_MIRROR:-https://deb.debian.org/debian}
+        DEBIAN_SECURITY_MIRROR: ${DEBIAN_SECURITY_MIRROR:-https://deb.debian.org/debian-security}
     container_name: tgw-app
     ports:
-      - '3000:3000'
+      - '127.0.0.1:3010:3000'
     env_file:
       - ../.env
     environment:
@@ -52,6 +55,12 @@ services:
       TDLIB_PATH: /app/node_modules/@prebuilt-tdlib/linux-x64-glibc/libtdjson.so
       TG_API_ID: ${TG_API_ID}
       TG_API_HASH: ${TG_API_HASH}
+      TG_DEFAULT_PROXY_TYPE: ${TG_DEFAULT_PROXY_TYPE:-}
+      TG_DEFAULT_PROXY_HOST: ${TG_DEFAULT_PROXY_HOST:-}
+      TG_DEFAULT_PROXY_PORT: ${TG_DEFAULT_PROXY_PORT:-}
+      TG_DEFAULT_PROXY_USERNAME: ${TG_DEFAULT_PROXY_USERNAME:-}
+      TG_DEFAULT_PROXY_PASSWORD: ${TG_DEFAULT_PROXY_PASSWORD:-}
+      TG_DEFAULT_PROXY_SECRET: ${TG_DEFAULT_PROXY_SECRET:-}
     depends_on:
       postgres:
         condition: service_healthy
diff --git a/telegram-gateway/docker/scripts/init-db.sql b/telegram-gateway/docker/scripts/init-db.sql
new file mode 100644
index 0000000..0a00220
--- /dev/null
+++ b/telegram-gateway/docker/scripts/init-db.sql
@@ -0,0 +1,8 @@
+-- Telegram User Gateway - Database Initialization
+-- This script runs on first PostgreSQL startup
+
+-- Enable UUID extension
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+
+-- Create indexes will be handled by TypeORM synchronize in dev
+-- or by migrations in production
diff --git a/telegram-gateway/src/modules/tg-accounts/tg-accounts.service.ts b/telegram-gateway/src/modules/tg-accounts/tg-accounts.service.ts
index 24144fd..13e797f 100644
--- a/telegram-gateway/src/modules/tg-accounts/tg-accounts.service.ts
+++ b/telegram-gateway/src/modules/tg-accounts/tg-accounts.service.ts
@@ -171,7 +171,7 @@ export class TgAccountsService implements OnModuleInit {
     const binding = await this.bindingRepo.findOne({
       where: { accountId, isActive: true },
     });
-    if (!binding) return undefined;
+    if (!binding) return this.getDefaultProxy();
 
     const proxy = await this.proxyRepo
       .createQueryBuilder('proxy')
@@ -179,7 +179,7 @@ export class TgAccountsService implements OnModuleInit {
       .where('proxy.id = :id', { id: binding.proxyId })
       .andWhere('proxy.isActive = :isActive', { isActive: true })
       .getOne();
-    if (!proxy) return undefined;
+    if (!proxy) return this.getDefaultProxy();
 
     return {
       type: proxy.type,
@@ -190,4 +190,27 @@ export class TgAccountsService implements OnModuleInit {
       secret: proxy.secret,
     };
   }
+
+  private getDefaultProxy() {
+    const host = String(process.env.TG_DEFAULT_PROXY_HOST || '').trim();
+    const port = Number(process.env.TG_DEFAULT_PROXY_PORT || 0);
+    if (!host || !Number.isInteger(port) || port < 1 || port > 65535) {
+      return undefined;
+    }
+
+    const type = String(process.env.TG_DEFAULT_PROXY_TYPE || 'socks5').toLowerCase();
+    if (!['socks5', 'http', 'mtproto'].includes(type)) {
+      this.logger.warn(`Ignoring unsupported TG_DEFAULT_PROXY_TYPE: ${type}`);
+      return undefined;
+    }
+
+    return {
+      type,
+      host,
+      port,
+      username: process.env.TG_DEFAULT_PROXY_USERNAME || '',
+      password: process.env.TG_DEFAULT_PROXY_PASSWORD || '',
+      secret: process.env.TG_DEFAULT_PROXY_SECRET || '',
+    };
+  }
 }
diff --git a/whatsapp-gateway/Dockerfile b/whatsapp-gateway/Dockerfile
index 0234eec..bd6d4e0 100644
--- a/whatsapp-gateway/Dockerfile
+++ b/whatsapp-gateway/Dockerfile
@@ -1,5 +1,9 @@
 FROM node:20-bookworm-slim
 
+ARG DEBIAN_MIRROR=https://deb.debian.org/debian
+ARG DEBIAN_SECURITY_MIRROR=https://deb.debian.org/debian-security
+RUN sed -i "s|http://deb.debian.org/debian-security|${DEBIAN_SECURITY_MIRROR}|g; s|http://deb.debian.org/debian|${DEBIAN_MIRROR}|g" /etc/apt/sources.list.d/debian.sources
+
 ENV NODE_ENV=production
 WORKDIR /app
 
diff --git a/whatsapp-gateway/src/index.js b/whatsapp-gateway/src/index.js
index 26b3257..3bd4aac 100644
--- a/whatsapp-gateway/src/index.js
+++ b/whatsapp-gateway/src/index.js
@@ -31,6 +31,7 @@ const accountsFile = path.join(dataDir, 'accounts.json')
 const webhookDeliveriesFile = path.join(dataDir, 'webhook-deliveries.json')
 const outboundJobsFile = path.join(dataDir, 'outbound-jobs.json')
 const gatewayToken = String(process.env.WHATSAPP_GATEWAY_TOKEN || '')
+const defaultProxyUrl = String(process.env.WHATSAPP_DEFAULT_PROXY_URL || '').trim()
 const maxMessagesPerChat = Math.max(2_000, Number(process.env.MAX_MESSAGES_PER_CHAT || 20_000))
 const log = pino({ level: process.env.LOG_LEVEL || 'info' })
 
@@ -90,7 +91,7 @@ function accountWebhookSecret(account) {
 }
 
 function accountProxyUrl(account) {
-  return decryptCredential(account?.proxyUrlEncrypted || '')
+  return decryptCredential(account?.proxyUrlEncrypted || '') || defaultProxyUrl
 }
 
 function jsonSafe(value) {