feat: DashScope 模型代理服务初始提交

支持 Anthropic 和 OpenAI 兼容协议的模型池反代，自动切换免费额度耗尽的模型。

Dockerfile

@@ -0,0 +1,19 @@
+FROM node:22-alpine AS deps
+WORKDIR /app
+COPY package.json pnpm-lock.yaml* ./
+RUN corepack enable && pnpm install --frozen-lockfile
+
+FROM node:22-alpine AS build
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+RUN corepack enable && pnpm build
+
+FROM node:22-alpine AS runner
+WORKDIR /app
+ENV NODE_ENV=production
+COPY package.json ./
+COPY --from=deps /app/node_modules ./node_modules
+COPY --from=build /app/dist ./dist
+EXPOSE 3000
+CMD ["node", "dist/index.js"]