fix: 优化 Docker 构建流程并修复 Ventoy 资源路径

- Dockerfile: 合并 RUN 层减少镜像层数，使用 COPY --chmod 简化权限设置
- init.sh: 指定数据目录为 /etc/one-kvm 确保路径一致
- package-docker.sh: 从 libs/ventoy-img-rs/resources 复制资源并自动解压 xz 文件
- README.md: 修正 docker run 示例格式

build/Dockerfile.runtime

@@ -8,7 +8,7 @@ FROM debian:12-slim
 
 ARG TARGETPLATFORM
 
-# Install runtime dependencies only (matches build environment)
+# Install runtime dependencies and create directories
 RUN apt-get update && apt-get install -y --no-install-recommends \
     # Runtime libraries
     libasound2 \
@@ -38,39 +38,19 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libxcb1 \
     # Utilities
     ca-certificates \
-    && rm -rf /var/lib/apt/lists/*
-
-# Intel Media SDK runtime for x86_64 only
-RUN if [ "$TARGETPLATFORM" = "linux/amd64" ]; then \
-        apt-get update && \
-        apt-get install -y --no-install-recommends libmfx1 && \
-        rm -rf /var/lib/apt/lists/*; \
-    fi
-
-# Create directories
-RUN mkdir -p /etc/one-kvm/ventoy
+    # Intel Media SDK (x86_64 only, ignored on other archs)
+    $([ "$TARGETPLATFORM" = "linux/amd64" ] && echo "libmfx1") \
+    && rm -rf /var/lib/apt/lists/* \
+    && mkdir -p /etc/one-kvm/ventoy
 
 # Copy init script
-COPY init.sh /init.sh
+COPY --chmod=755 init.sh /init.sh
 
 # Copy binaries (these are placed by the build script)
-COPY one-kvm /usr/bin/one-kvm
-COPY ttyd /usr/bin/ttyd
-COPY gostc /usr/bin/gostc
-COPY easytier-core /usr/bin/easytier-core
+COPY --chmod=755 one-kvm ttyd gostc easytier-core /usr/bin/
 
 # Copy ventoy resources if they exist
 COPY ventoy/ /etc/one-kvm/ventoy/
 
-# Set permissions and verify
-RUN chmod +x /init.sh /usr/bin/one-kvm /usr/bin/ttyd /usr/bin/gostc /usr/bin/easytier-core && \
-    /usr/bin/one-kvm --help
-
-# Expose ports
-EXPOSE 8080 8443
-
-# Data volume
-VOLUME ["/etc/one-kvm"]
-
 # Entrypoint
 CMD ["/init.sh"]