feat: 添加二次开发部署配置和文档

- 添加双 Git remote 配置指南 (GIT_GUIDE.md, GIT_WORKFLOW.md)
- 添加 1Panel 环境部署配置 (docker-compose.1panel.yml, .env.1panel)
- 添加自动化部署脚本 (deploy-complete.sh, deploy-dev.sh, deploy.sh)
- 添加部署说明文档 (README_DEPLOY.md)
- 配置端口 2080 映射
- 支持连接现有 1Panel Redis (1Panel-redis-S1KH)

deploy/.env.1panel

@@ -0,0 +1,51 @@
+# =============================================================================
+# Sub2API 环境配置 - 1Panel 环境
+# =============================================================================
+
+# -----------------------------------------------------------------------------
+# Server Configuration
+# -----------------------------------------------------------------------------
+BIND_HOST=0.0.0.0
+SERVER_PORT=2080
+SERVER_MODE=release
+RUN_MODE=standard
+TZ=Asia/Shanghai
+
+# -----------------------------------------------------------------------------
+# PostgreSQL Configuration (REQUIRED - 请修改密码！)
+# -----------------------------------------------------------------------------
+POSTGRES_USER=sub2api
+POSTGRES_PASSWORD=请修改为你的强密码
+POSTGRES_DB=sub2api
+
+# -----------------------------------------------------------------------------
+# Redis Configuration - 使用你现有的 1Panel Redis
+# -----------------------------------------------------------------------------
+# 方式1：如果使用 Docker 网络连接，填写容器名
+REDIS_HOST=1Panel-redis-S1KH
+# 方式2：如果上面不行，使用宿主机 IP（需要你填写服务器的内网 IP）
+# REDIS_HOST=172.17.0.1
+REDIS_PORT=6379
+REDIS_PASSWORD=redis_bJFKDk
+REDIS_DB=1
+
+# -----------------------------------------------------------------------------
+# Admin Account
+# -----------------------------------------------------------------------------
+ADMIN_EMAIL=oadmin
+ADMIN_PASSWORD=oadmin@123
+
+# -----------------------------------------------------------------------------
+# JWT Configuration
+# -----------------------------------------------------------------------------
+# 使用下面的命令生成随机密钥：openssl rand -hex 32
+JWT_SECRET=1fb3a3533039e0d1ea693f0508bbffca44b7157370f11dfe33ce352a5f07039a
+JWT_EXPIRE_HOUR=24
+
+# -----------------------------------------------------------------------------
+# Gemini OAuth (可选 - 如果不使用 Gemini 可以忽略)
+# -----------------------------------------------------------------------------
+GEMINI_OAUTH_CLIENT_ID=
+GEMINI_OAUTH_CLIENT_SECRET=
+GEMINI_OAUTH_SCOPES=
+GEMINI_QUOTA_POLICY=