fix: 使用 debian bookworm 镜像替代 alpine

Dockerfile

@@ -6,7 +6,7 @@
 #
 # 作者: titor
 # 创建日期: 2026-04-15
-FROM golang:1.26-alpine AS builder
+FROM golang:1.26-bookworm AS builder
 
 # 设置工作目录
 WORKDIR /build
@@ -26,14 +26,10 @@ COPY . .
 RUN CGO_ENABLED=0 GOOS=linux go build -o ttychart-mcp .
 
 # 最终镜像
-FROM alpine:latest
-
-# 设置 apk 国内镜像源
-RUN echo 'https://mirrors.aliyun.com/alpine/v3.15/main' > /etc/apk/repositories && \
-    echo 'https://mirrors.aliyun.com/alpine/v3.15/community' >> /etc/apk/repositories
+FROM debian:bookworm-slim
 
 # 安装 ca-certificates 用于 HTTPS
-RUN apk --no-cache add ca-certificates
+RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates && rm -rf /var/lib/apt/lists/*
 
 # 设置工作目录
 WORKDIR /app