fix: 添加 Spot 抢占式实例注解和环境变量注入

- 添加 eci-spot-instance 注解启用抢占式实例
- 从 .env 读取 ANTHROPIC_BASE_URL 并注入容器环境变量

Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/deploy.ts

@@ -91,6 +91,8 @@ export async function deployProxy(params: DeployProxyParams): Promise<DeployProx
         annotations: {
           // ECI 实例规格
           'k8s.aliyun.com/eci-use-specs': instanceType,
+          // 抢占式实例
+          'k8s.aliyun.com/eci-spot-instance': 'true',
           // 自动创建 EIP
           ...(autoEip && {
             'k8s.aliyun.com/eci-open-enable-eip': 'true',
@@ -116,6 +118,8 @@ export async function deployProxy(params: DeployProxyParams): Promise<DeployProx
             annotations: {
               // ECI 实例规格
               'k8s.aliyun.com/eci-use-specs': instanceType,
+              // 抢占式实例
+              'k8s.aliyun.com/eci-spot-instance': 'true',
               // 自动创建 EIP
               ...(autoEip && {
                 'k8s.aliyun.com/eci-open-enable-eip': 'true',