feat(tools): 白模关卡自动生成Python脚本——Level Builder

两阶段流水线：搭建指南Markdown → JSON → UE5 Actor
- 解析器：4种表格变体+范围展开+坐标表达式计算
- 配置：37种BSP资产映射+13种材质+7区域定义
- 验证：265个Actor全部通过，0错误
- Builder：UE5 Python API自动放置Actor+材质+Outliner
- 报告：自动生成搭建报告Markdown

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tools/level-builder/config/substitution_rules.py

@@ -0,0 +1,36 @@
+"""Primitives 替代规则。
+
+数据来源: docs/technical/关卡-v01-搭建报告.md 第四节（缩放记录）
+
+当搭建指南中直接指定了资产和缩放时，无需查此表。
+此表用于未来执行案解析器，将语义化物件名映射到 Primitives 替代方案。
+"""
+
+SUBSTITUTION_RULES = {
+    # ---- 家具/家电 ----
+    "冰箱":   {"asset": "Cube",    "scale": (0.3, 0.3, 1.6),  "material": "MI_DevWhite"},
+    "冰柜":   {"asset": "Cube",    "scale": (1.0, 0.6, 0.85), "material": "MI_DevWhite"},
+    "电视柜": {"asset": "SimpleTable_02", "scale": (0.85, 0.75, 0.67)},
+    # ---- 建筑细节 ----
+    "门垫":   {"asset": "Cube",    "scale": (0.6, 0.4, 0.02), "material": "MI_DevGray"},
+    "日历":   {"asset": "Cube",    "scale": (0.3, 0.02, 0.4),  "material": "MI_DevRed"},
+    "招牌":   {"asset": "Cube",    "scale": (3.0, 0.05, 0.4),  "material": "MI_DevBlue"},
+    "涂鸦":   {"asset": "Cube",    "scale": (1.2, 0.05, 0.8),  "material": "MI_DevYellow"},
+    # ---- 玻璃 ----
+    "玻璃柜台": {"asset": "Cube",  "scale": (2.0, 0.6, 0.9),   "material": "MI_DevGlassWhite"},
+    "积水坑":   {"asset": "Cube",  "scale": (1.2, 0.8, 0.01),  "material": "MI_DevGlassBlue"},
+    # ---- 街道/城郊物件 ----
+    "电话亭":   {"asset": "Cube",  "scale": (0.8, 0.8, 2.2),   "material": "MI_DevGray"},
+    "电线杆":   {"asset": "Cylinder", "scale": (0.04, 0.04, 12.0), "material": "MI_DevGray"},
+    "晾衣杆_柱": {"asset": "Cylinder", "scale": (0.05, 0.05, 3.6),  "material": "MI_DevGray"},
+    "芦苇":     {"asset": "Cylinder", "scale": (0.08, 0.08, 2.0),  "material": "MI_DevFoliage"},
+    "花盆":     {"asset": "Cylinder", "scale": (0.2, 0.2, 0.25),   "material": "MI_DevGreen"},
+    # ---- 水塘 ----
+    "荷叶":     {"asset": "CirclePlatform", "scale": (0.06, 0.06, 0.01), "material": "MI_DevGreen"},
+    "青蛙":     {"asset": "Cube",    "scale": (0.05, 0.05, 0.04),  "material": "MI_DevGreen"},
+    "下水道盖": {"asset": "CirclePlatform", "scale": (0.12, 0.12, 0.02), "material": "MI_DevGray"},
+    "弹珠圈":   {"asset": "CirclePlatform", "scale": (0.16, 0.16, 0.01), "material": "MI_DevGray"},
+    # ---- 自然 ----
+    "青苔":     {"asset": "Cube",    "scale": (0.6, 0.4, 0.01),  "material": "MI_DevFoliage"},
+    "蜘蛛网":   {"asset": "Cube",    "scale": (0.3, 0.01, 0.3),  "material": "MI_DevWhite"},
+}