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/_route_nets.out.json

@@ -0,0 +1 @@
+{"nets": {"SDA": {"segs": [], "vias": [], "before": 2, "after": 2, "logs": ["SDA: U13.4 出不来"]}, "SCL": {"segs": [[2, 27.75, 12.0, 27.75, 12.75, 0.2, "SCL"], [2, 27.75, 12.75, 29.0, 14.0, 0.2, "SCL"], [2, 29.0, 14.0, 29.0, 17.625, 0.2, "SCL"], [2, 29.0, 17.625, 29.125, 17.75, 0.2, "SCL"], [2, 29.125, 17.75, 29.125, 24.25, 0.2, "SCL"], [2, 29.125, 24.25, 27.5, 25.875, 0.2, "SCL"], [2, 27.5, 25.875, 27.5, 36.625, 0.2, "SCL"], [2, 27.5, 36.625, 22.0, 42.125, 0.2, "SCL"], [2, 26.7, 11.4, 27.700499999999998, 11.4, 0.2, "SCL"], [2, 27.700499999999998, 11.4, 27.75, 12.0, 0.2, "SCL"], [2, 21.61, 42.499, 22.0, 42.125, 0.2, "SCL"]], "vias": [], "before": 2, "after": 1, "logs": []}}, "logs": ["SDA: U13.4 出不来"], "grid": 0.125, "drop_a": [], "cuts": []}