Fix Docker configuration for deployment

- Update backend Dockerfile to use Rust 1.85 (edition 2024 support)
- Add Aliyun mirrors for Alpine packages
- Add rsproxy.cn mirror for cargo crates
- Enable static OpenSSL linking
- Fix frontend Dockerfile to use NEXT_PUBLIC_API_BASE
- Add mkdir -p public to ensure public dir exists
- Update docker-compose files to use correct env var names
- Add docker-compose.deploy.yml for production deployment

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/Dockerfile

@@ -4,8 +4,8 @@ FROM node:20-alpine AS builder
 WORKDIR /app
 
 # 构建参数（NEXT_PUBLIC_* 变量需要在构建时注入）
-ARG NEXT_PUBLIC_API_URL
-ENV NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}
+ARG NEXT_PUBLIC_API_BASE
+ENV NEXT_PUBLIC_API_BASE=${NEXT_PUBLIC_API_BASE}
 
 # Copy package files
 COPY package*.json ./
@@ -16,6 +16,9 @@ RUN npm ci
 # Copy source code
 COPY . .
 
+# Ensure public directory exists
+RUN mkdir -p public
+
 # Build Next.js app
 RUN npm run build