Initial commit: Material Texture API service

- Go + Gin + GORM + PostgreSQL backend
- RESTful API for material management
- Docker deployment support
- Database partitioning for billion-scale data
- API documentation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Dockerfile

@@ -0,0 +1,35 @@
+# 构建阶段
+FROM golang:1.23-alpine AS builder
+
+WORKDIR /app
+
+# 安装必要的构建工具
+RUN apk add --no-cache git
+
+# 复制go.mod和go.sum
+COPY go.mod go.sum ./
+RUN go mod download
+
+# 复制源代码
+COPY . .
+
+# 构建
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-w -s" -o /app/server ./cmd/server
+
+# 运行阶段
+FROM alpine:3.18
+
+WORKDIR /app
+
+# 安装必要的运行时依赖
+RUN apk add --no-cache ca-certificates tzdata
+
+# 从构建阶段复制二进制文件
+COPY --from=builder /app/server /app/server
+
+# 设置时区
+ENV TZ=Asia/Shanghai
+
+EXPOSE 8080
+
+CMD ["/app/server"]