Fix: Add complete LDraw library (official + unofficial parts)

Dockerfile

@@ -25,20 +25,33 @@ RUN apt-get update && apt-get install -y \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
-# 下载并解压 LDraw 库（LEGO 零件定义）
-RUN echo "📦 Downloading LDraw library..." && \
+# 下载完整 LDraw 库（官方 + 非官方零件）
+RUN echo "📦 Downloading complete LDraw library..." && \
+    # 官方零件库 (~18MB → ~70MB)
     wget -q --retry-connrefused --waitretry=5 --tries=3 \
         https://library.ldraw.org/library/updates/complete.zip \
         -O /tmp/ldraw.zip && \
-    echo "📂 Extracting LDraw library..." && \
+    echo "📂 Extracting official LDraw library..." && \
     unzip -q /tmp/ldraw.zip -d /home/user/ && \
     rm /tmp/ldraw.zip && \
+    # 非官方零件库 (~12MB → ~50MB)
+    echo "📦 Downloading unofficial LDraw parts..." && \
+    wget -q --retry-connrefused --waitretry=5 --tries=3 \
+        https://library.ldraw.org/library/unofficial/ldrawunf.zip \
+        -O /tmp/ldrawunf.zip && \
+    mkdir -p /home/user/ldraw/unofficial && \
+    echo "📂 Extracting unofficial parts..." && \
+    unzip -q /tmp/ldrawunf.zip -d /home/user/ldraw/unofficial/ && \
+    rm /tmp/ldrawunf.zip && \
     chown -R user:user /home/user/ldraw && \
-    echo "✅ LDraw library installed to /home/user/ldraw"
+    echo "✅ Complete LDraw library installed"
 
-# 验证 LDraw 库结构
+# 验证 LDraw 库完整性
 RUN test -d /home/user/ldraw/parts && \
-    echo "✓ LDraw parts directory exists" || \
+    test -d /home/user/ldraw/unofficial/parts && \
+    echo "📊 Official parts: $(find /home/user/ldraw/parts -name '*.dat' | wc -l)" && \
+    echo "📊 Unofficial parts: $(find /home/user/ldraw/unofficial/parts -name '*.dat' | wc -l)" && \
+    echo "✓ LDraw installation verified" || \
     (echo "✗ LDraw installation failed" && exit 1)
 
 # 以 root 身份预创建 X11 socket 目录（解决 Xvfb 权限问题）