chore: import 3d-drawing history from local Code/3d-drawing (subfolder, history preserved)

3d-drawing/data/verify_skeleton.json

@@ -0,0 +1,28 @@
+{
+  "inner_radius_max_dev_m": 8.881784197001252e-16,
+  "lining_thickness_crown_m": 0.3,
+  "crown_above_road_m (expect 6.615 at S=0 station 5000)": 6.615,
+  "road_z_4745_m": 50.62,
+  "road_z_5480_m": 67.311,
+  "plan_chord_length_total_m (4+700..5+500)": 799.905,
+  "station_range_modelled": "4745 .. 5480 (ring step 1.0 m, 736 rings)",
+  "pattern_zones (지보패턴표 당진방향)": 42,
+  "pattern_coverage_all_stations": true,
+  "pattern_counts": {
+    "A": 5,
+    "B-1": 8,
+    "B-2": 7,
+    "C-1": 4,
+    "C-2": 2,
+    "D-1": 3,
+    "D-2": 2,
+    "P-2": 1,
+    "P-3": 2,
+    "RP-1": 3,
+    "WL-1": 1,
+    "WL-2": 2,
+    "개착부": 2
+  },
+  "glb_bytes": 2201764,
+  "glb_reload_geometries": 5
+}