docs: 更新BOM清单与渲染图，适配200mm分段式立柱和防呆底座设计

docs/bom.json

@@ -1,23 +1,63 @@
 [
  {
-  "件号": "P01_胸板",
-  "名称": "胸腔支撑立柱（高刚性箱型梁+榫卯台座+走线窗）",
+  "件号": "P01_A_立柱下段",
+  "名称": "立柱下段（P01-A 标识版）",
   "类型": "3D打印",
   "数量": 1,
-  "体积cm3": 809.6,
-  "质量g_PLA": 1003.9,
-  "包络": "[-148.0 95.0 22.0 .. -82.0 161.0 470.0] (66.0x66.0x448.0)",
-  "说明": "V2高刚度立柱：66x66mm厚壁封闭箱梁+8mm壁厚+顶部P03榫卯台座+两组大圆角工艺走线窗"
+  "体积cm3": 305.1,
+  "质量g_PLA": 378.3,
+  "包络": "[-148.0 95.0 22.0 .. -82.0 161.0 188.0] (66.0x66.0x166.0)",
+  "说明": "200mm适配分段A：高166mm+16mm阶梯公榫+非对称M4防反装通孔+P01-A ▲ TOP刻字"
  },
  {
-  "件号": "P02_底脚",
-  "名称": "测试台架底座（重型防倾翻超长力臂+双向三角斜撑版）",
+  "件号": "P01_B_立柱中段",
+  "名称": "立柱中段（P01-B 标识版）",
   "类型": "3D打印",
   "数量": 1,
-  "体积cm3": 2122.9,
-  "质量g_PLA": 2632.4,
-  "包络": "[-241.5 6.5 -0.0 .. 146.5 249.5 70.0] (388.0x243.0x70.0)",
-  "说明": "防倾翻超大底盘：385x240mm超长力臂+48mm立柱套筒+前后双向大三角抗倾翻斜撑筋+走线导槽+6xM6固定槽"
+  "体积cm3": 269.3,
+  "质量g_PLA": 333.9,
+  "包络": "[-148.0 95.0 172.0 .. -82.0 161.0 337.0] (66.0x66.0x165.0)",
+  "说明": "200mm适配分段B：高165mm+双端公母榫+非对称M4防反装通孔+P01-B ▲ TOP刻字"
+ },
+ {
+  "件号": "P01_C_立柱上段",
+  "名称": "立柱上段（P01-C 标识版）",
+  "类型": "3D打印",
+  "数量": 1,
+  "体积cm3": 225.8,
+  "质量g_PLA": 280.0,
+  "包络": "[-148.0 95.0 321.0 .. -82.0 161.0 470.0] (66.0x66.0x149.0)",
+  "说明": "200mm适配分段C：高149mm+底端母榫+非对称M4防反装通孔+顶面P03安装台+P01-C ▲ TOP刻字"
+ },
+ {
+  "件号": "P02_Center_底座中核心",
+  "名称": "底座核心承力座（防呆榫卯版）",
+  "类型": "3D打印",
+  "数量": 1,
+  "体积cm3": 867.6,
+  "质量g_PLA": 1075.8,
+  "包络": "[-195.7 32.3 -0.0 .. 0.7 223.7 70.0] (196.3x191.3x70.0)",
+  "说明": "200mm适配中座：195x190mm核心承力座+48mm立柱套筒+前后三角加强筋+前后非对称防呆母榫槽+刻字"
+ },
+ {
+  "件号": "P02_Front_前向防翻力臂",
+  "名称": "前向防翻力臂（P02-FRONT 标识版）",
+  "类型": "3D打印",
+  "数量": 1,
+  "体积cm3": 613.5,
+  "质量g_PLA": 760.7,
+  "包络": "[-19.5 31.7 -0.0 .. 146.3 224.3 22.0] (165.8x192.6x22.0)",
+  "说明": "200mm适配前臂：145x190mm扩展力臂+104mm宽跨距双公榫+底部M5预埋螺母沉槽+P02-FRONT刻字"
+ },
+ {
+  "件号": "P02_Rear_后向防翻力臂",
+  "名称": "后向防翻力臂（P02-REAR 标识版）",
+  "类型": "3D打印",
+  "数量": 1,
+  "体积cm3": 190.4,
+  "质量g_PLA": 236.1,
+  "包络": "[-241.3 31.7 -0.0 .. -175.5 224.3 22.0] (65.8x192.6x22.0)",
+  "说明": "200mm适配后臂：45x190mm扩展力臂+80mm窄跨距双公榫+底部M5预埋螺母沉槽+P02-REAR刻字"
  },
  {
   "件号": "P03_肩吊臂",
@@ -64,9 +104,9 @@
   "名称": "小臂骨架（L型圆弧加强版：R=28mm双相切内凹大圆弧+消除悬空块）",
   "类型": "3D打印",
   "数量": 1,
-  "体积cm3": 173.6,
-  "质量g_PLA": 215.3,
-  "包络": "[-16.5 92.0 187.0 .. 53.5 174.0 367.0] (70.0x82.0x180.0)",
+  "体积cm3": 208.5,
+  "质量g_PLA": 258.6,
+  "包络": "[-19.4 92.0 187.0 .. 56.4 174.0 369.9] (75.8x82.0x182.9)",
   "说明": "V2 L型结构：+Y侧背脊立柱避让大臂骨架，过渡区采用与顶面和立柱双相切的R=28mm平滑内凹大圆弧，彻底消除直斜线折角与悬空阶梯小块，下方M5电机半包散热，俯仰大范围自由运动零干涉"
  },
  {