R2：底板 / 刀片布局布线脚本、快照、截图与规划文档更新（含外壳、打印件、布线归档）

Co-Authored-By: Claude Opus 5.5 <[email protected]>

.claude/r2/_up_route.cl_c.json

@@ -0,0 +1 @@
+{"segs": [], "vias": [], "ret": [[44.25, 39.125, "GND"], [82.5, 5.5, "GND"], [84.5, 9.875, "GND"]], "logs": ["#UP: UP.fan:c0 没布通", "中心线没布通（段 0 / 孔 0）"], "grid": 0.125, "centerline": true, "worst": [9.0, ""], "pair_clr": 9.0}