feat: strengthen modeling, configuration, and assembly workflows

Preserve linked sketch identities through deterministic face projection and resizing. Fix origin-corner picking, persistent inline navigation, appearance editing, configuration styles, component properties, contact sweeps, sheet exports, analytic STEP offsets, and bounded rolling-ball fit accuracy.

Validated with full cargo xtask ci, native workflow screenshots, repeated enclosure replays, and analytic geometry regressions.

crates/ui-egui/tests/scenarios/s08_sheet_metal_flat_dxf.json

@@ -110,7 +110,15 @@
    "file": "Untitled-Body1.dxf"
   }
  },
+ {
+  "widget": "Export Bend Table\u2026"
+ },
+ {
+  "expect": {
+   "file": "Untitled-Body1.csv"
+  }
+ },
  {
   "shot": "s08_flat"
  }
-]
+]

crates/ui-egui/tests/scenarios/s43_root_sketch_on_moved_component_face.json

@@ -78,14 +78,10 @@
  },
  {
   "expect": {
-   "sketch_world": {
-    "sketch": "Sketch1",
-    "point": "p1",
-    "at": [
-     140,
-     0,
-     20
-    ]
+   "linked_world_range": {
+    "x": [100, 140],
+    "y": [0, 30],
+    "z": [20, 20]
    }
   }
  },
@@ -100,4 +96,4 @@
    "errors": 0
   }
  }
-]
+]

crates/ui-egui/tests/scenarios/s60_appearance_overrides.json

@@ -0,0 +1,17 @@
+[
+  {"note": "Appearance from the Browser targets its body, filters library names, and removal survives OK and can be undone."},
+  {"call": "engine.execute", "params": {"command": "solid.box", "params": {"length": 30, "width": 20, "height": 10}}},
+  {"call": "engine.execute", "params": {"command": "appearance.assign", "params": {"bodies": ["Body1"], "color": "#abcdef", "appearance": "Tinted glass", "opacity": 0.25}}},
+  {"call": "ui.menu", "params": {"x": 300, "y": 300, "target": {"type": "body", "name": "Body1"}}},
+  {"call": "ui.menuPick", "params": {"item": "Appearance"}},
+  {"expect": {"dialog": "Appearance", "shown": "Remove override"}},
+  {"click": {"handle": "appearance:search"}},
+  {"text": "no-such-appearance"},
+  {"expect": {"shown": "No matching appearances"}},
+  {"shot": "appearance_library_search"},
+  {"widget": "Remove override"},
+  {"widget": "OK"},
+  {"expect": {"dialog": null, "query": {"command": "appearance.list", "path": ["bodies"], "value": {}}}},
+  {"call": "engine.execute", "params": {"command": "edit.undo", "params": {}}},
+  {"expect": {"query": {"command": "appearance.list", "path": ["bodies", "Body1", "opacity"], "value": 0.25}}}
+]

crates/ui-egui/tests/scenarios/s80_configuration_styles.json

@@ -0,0 +1,21 @@
+[
+  {"note":"Configure a body's appearance in the table, apply the edited active row, and render the result."},
+  {"call":"engine.execute","params":{"command":"solid.box","params":{"length":40,"width":20,"height":10,"body_name":"Block"}}},
+  {"call":"engine.execute","params":{"command":"material.assign","params":{"bodies":["Block"],"material":"Steel"}}},
+  {"start":"config.table"},
+  {"widget":"Add Column"},
+  {"widget":"Block (appearance)"},
+  {"expect":{"shown":"Appearance: Block"}},
+  {"widget":"Library"},
+  {"widget":"ABS - Red"},
+  {"widget":"Apply"},
+  {"shot":"configuration_red"},
+  {"expect":{"errors":0,"bodies":1,"query":{"command":"appearance.list","path":["bodies","Block","color"],"value":"#c42828"}}},
+  {"widget":"Library"},
+  {"widget":"Follow material"},
+  {"widget":"Apply"},
+  {"shot":"configuration_default"},
+  {"expect":{"errors":0,"bodies":1,"query":{"command":"appearance.list","path":["bodies","Block"],"value":null}}},
+  {"expect":{"query":{"command":"appearance.list","params":{"body":"Block"},"path":["body","appearance","name"],"value":"Steel"}}},
+  {"expect":{"query":{"command":"config.table","path":["matches"],"value":true}}}
+]