diff --git a/backend/deploy.sh b/backend/deploy.sh
index c93ec75..6c4a68e 100755
--- a/backend/deploy.sh
+++ b/backend/deploy.sh
@@ -131,7 +131,7 @@ deploy_docker() {
         warn ".env 文件不存在，创建示例文件..."
         cat > .env <<EOF
 # 数据库配置
-DB_URL=jdbc:mysql://mysql:3306/polyhermes?useSSL=false&serverTimezone=UTC&characterEncoding=utf8mb4
+DB_URL=jdbc:mysql://mysql:3306/polyhermes?useSSL=false&serverTimezone=UTC&characterEncoding=utf8&allowPublicKeyRetrieval=true
 DB_USERNAME=root
 DB_PASSWORD=your_password_here
 
diff --git a/backend/docker-compose.yml b/backend/docker-compose.yml
index 821effe..926fd2d 100644
--- a/backend/docker-compose.yml
+++ b/backend/docker-compose.yml
@@ -10,7 +10,7 @@ services:
       - "${SERVER_PORT:-8000}:8000"
     environment:
       - SPRING_PROFILES_ACTIVE=${SPRING_PROFILES_ACTIVE:-prod}
-      - DB_URL=${DB_URL:-jdbc:mysql://mysql:3306/polyhermes?useSSL=false&serverTimezone=UTC&characterEncoding=utf8mb4}
+      - DB_URL=${DB_URL:-jdbc:mysql://mysql:3306/polyhermes?useSSL=false&serverTimezone=UTC&characterEncoding=utf8&allowPublicKeyRetrieval=true}
       - DB_USERNAME=${DB_USERNAME:-root}
       - DB_PASSWORD=${DB_PASSWORD:-}
       - SERVER_PORT=8000
diff --git a/backend/src/main/resources/db/migration/V1__init_database.sql b/backend/src/main/resources/db/migration/V1__init_database.sql
index cf830c3..4061c67 100644
--- a/backend/src/main/resources/db/migration/V1__init_database.sql
+++ b/backend/src/main/resources/db/migration/V1__init_database.sql
@@ -209,3 +209,23 @@ CREATE TABLE IF NOT EXISTS users (
     INDEX idx_username (username),
     INDEX idx_is_default (is_default)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户表（JWT登录鉴权）';
+
+-- ============================================
+-- 11. 创建代理配置表
+-- ============================================
+CREATE TABLE IF NOT EXISTS proxy_config (
+    id BIGINT AUTO_INCREMENT PRIMARY KEY,
+    type VARCHAR(20) NOT NULL COMMENT '代理类型：HTTP, CLASH, SS',
+    enabled BOOLEAN NOT NULL DEFAULT FALSE COMMENT '是否启用',
+    host VARCHAR(255) NULL COMMENT '代理主机（HTTP代理）',
+    port INT NULL COMMENT '代理端口（HTTP代理）',
+    username VARCHAR(100) NULL COMMENT '代理用户名（HTTP代理，可选）',
+    password VARCHAR(255) NULL COMMENT '代理密码（HTTP代理，可选，BCrypt加密）',
+    subscription_url VARCHAR(500) NULL COMMENT '订阅链接（Clash/SS代理）',
+    subscription_config TEXT NULL COMMENT '订阅配置内容（Clash/SS代理，JSON格式）',
+    last_subscription_update BIGINT NULL COMMENT '最后订阅更新时间（毫秒时间戳）',
+    created_at BIGINT NOT NULL COMMENT '创建时间（毫秒时间戳）',
+    updated_at BIGINT NOT NULL COMMENT '更新时间（毫秒时间戳）',
+    INDEX idx_type (type),
+    INDEX idx_enabled (enabled)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='代理配置表';
diff --git a/backend/src/main/resources/db/migration/V2__create_proxy_config_table.sql b/backend/src/main/resources/db/migration/V2__create_proxy_config_table.sql
deleted file mode 100644
index 601446d..0000000
--- a/backend/src/main/resources/db/migration/V2__create_proxy_config_table.sql
+++ /dev/null
@@ -1,20 +0,0 @@
--- ============================================
--- 创建代理配置表
--- ============================================
-CREATE TABLE IF NOT EXISTS proxy_config (
-    id BIGINT AUTO_INCREMENT PRIMARY KEY,
-    type VARCHAR(20) NOT NULL COMMENT '代理类型：HTTP, CLASH, SS',
-    enabled BOOLEAN NOT NULL DEFAULT FALSE COMMENT '是否启用',
-    host VARCHAR(255) NULL COMMENT '代理主机（HTTP代理）',
-    port INT NULL COMMENT '代理端口（HTTP代理）',
-    username VARCHAR(100) NULL COMMENT '代理用户名（HTTP代理，可选）',
-    password VARCHAR(255) NULL COMMENT '代理密码（HTTP代理，可选，BCrypt加密）',
-    subscription_url VARCHAR(500) NULL COMMENT '订阅链接（Clash/SS代理）',
-    subscription_config TEXT NULL COMMENT '订阅配置内容（Clash/SS代理，JSON格式）',
-    last_subscription_update BIGINT NULL COMMENT '最后订阅更新时间（毫秒时间戳）',
-    created_at BIGINT NOT NULL COMMENT '创建时间（毫秒时间戳）',
-    updated_at BIGINT NOT NULL COMMENT '更新时间（毫秒时间戳）',
-    INDEX idx_type (type),
-    INDEX idx_enabled (enabled)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='代理配置表';
-
diff --git a/backend/src/main/resources/db/migration/V3__rename_copy_trading_accounts_to_wallet_accounts.sql b/backend/src/main/resources/db/migration/V3__rename_copy_trading_accounts_to_wallet_accounts.sql
deleted file mode 100644
index 6a4a051..0000000
--- a/backend/src/main/resources/db/migration/V3__rename_copy_trading_accounts_to_wallet_accounts.sql
+++ /dev/null
@@ -1,36 +0,0 @@
--- ============================================
--- 重命名账户表：copy_trading_accounts -> wallet_accounts
--- ============================================
-
--- 检查表是否存在，如果存在则重命名
--- 注意：此迁移脚本假设表已经存在（从 V1 迁移创建）
-
--- 1. 查找外键约束名称并删除
-SET @fk_name = NULL;
-SELECT CONSTRAINT_NAME INTO @fk_name
-FROM information_schema.KEY_COLUMN_USAGE 
-WHERE TABLE_SCHEMA = DATABASE() 
-  AND TABLE_NAME = 'copy_trading' 
-  AND COLUMN_NAME = 'account_id' 
-  AND REFERENCED_TABLE_NAME = 'copy_trading_accounts'
-LIMIT 1;
-
--- 2. 如果找到外键，删除它
-SET @drop_fk_sql = IF(@fk_name IS NOT NULL, 
-    CONCAT('ALTER TABLE copy_trading DROP FOREIGN KEY `', @fk_name, '`'), 
-    'SELECT 1');
-PREPARE stmt FROM @drop_fk_sql;
-EXECUTE stmt;
-DEALLOCATE PREPARE stmt;
-
--- 3. 重命名表
-RENAME TABLE copy_trading_accounts TO wallet_accounts;
-
--- 4. 重新添加外键约束
-ALTER TABLE copy_trading 
-ADD CONSTRAINT fk_copy_trading_account_id 
-FOREIGN KEY (account_id) REFERENCES wallet_accounts(id) ON DELETE CASCADE;
-
--- 5. 更新表注释
-ALTER TABLE wallet_accounts COMMENT = '钱包账户表';
-
diff --git a/deploy.sh b/deploy.sh
index f88be7e..71e1b37 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -45,7 +45,7 @@ create_env_file() {
         warn ".env 文件不存在，创建示例文件..."
         cat > .env <<EOF
 # 数据库配置
-DB_URL=jdbc:mysql://mysql:3306/polyhermes?useSSL=false&serverTimezone=UTC&characterEncoding=utf8mb4
+DB_URL=jdbc:mysql://mysql:3306/polyhermes?useSSL=false&serverTimezone=UTC&characterEncoding=utf8&allowPublicKeyRetrieval=true
 DB_USERNAME=root
 DB_PASSWORD=your_password_here
 
diff --git a/docker-compose.yml b/docker-compose.yml
index 86145ec..cfc6450 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -10,7 +10,7 @@ services:
       - "${SERVER_PORT:-80}:80"
     environment:
       - SPRING_PROFILES_ACTIVE=${SPRING_PROFILES_ACTIVE:-prod}
-      - DB_URL=${DB_URL:-jdbc:mysql://mysql:3306/polyhermes?useSSL=false&serverTimezone=UTC&characterEncoding=utf8mb4}
+      - DB_URL=${DB_URL:-jdbc:mysql://mysql:3306/polyhermes?useSSL=false&serverTimezone=UTC&characterEncoding=utf8&allowPublicKeyRetrieval=true}
       - DB_USERNAME=${DB_USERNAME:-root}
       - DB_PASSWORD=${DB_PASSWORD:-}
       - SERVER_PORT=8000
diff --git a/docs/DEPLOYMENT.md b/docs/DEPLOYMENT.md
index c2315c5..d7ee395 100644
--- a/docs/DEPLOYMENT.md
+++ b/docs/DEPLOYMENT.md
@@ -41,7 +41,7 @@
 ```bash
 # 创建 .env 文件
 cat > .env <<EOF
-DB_URL=jdbc:mysql://mysql:3306/polyhermes?useSSL=false&serverTimezone=UTC&characterEncoding=utf8mb4
+DB_URL=jdbc:mysql://mysql:3306/polyhermes?useSSL=false&serverTimezone=UTC&characterEncoding=utf8&allowPublicKeyRetrieval=true
 DB_USERNAME=root
 DB_PASSWORD=your_password_here
 SPRING_PROFILES_ACTIVE=prod
@@ -180,7 +180,7 @@ cd backend
 ```bash
 # 创建 .env 文件
 cat > .env <<EOF
-DB_URL=jdbc:mysql://mysql:3306/polyhermes?useSSL=false&serverTimezone=UTC&characterEncoding=utf8mb4
+DB_URL=jdbc:mysql://mysql:3306/polyhermes?useSSL=false&serverTimezone=UTC&characterEncoding=utf8&allowPublicKeyRetrieval=true
 DB_USERNAME=root
 DB_PASSWORD=your_password_here
 SPRING_PROFILES_ACTIVE=prod
@@ -213,7 +213,7 @@ docker run -d \
   --name polyhermes-backend \
   -p 8000:8000 \
   -e SPRING_PROFILES_ACTIVE=prod \
-  -e DB_URL=jdbc:mysql://host.docker.internal:3306/polyhermes?useSSL=false \
+  -e DB_URL=jdbc:mysql://host.docker.internal:3306/polyhermes?useSSL=false&allowPublicKeyRetrieval=true \
   -e DB_USERNAME=root \
   -e DB_PASSWORD=your_password \
   -e JWT_SECRET=your-jwt-secret \