feat: 接入 SCDM 优先编辑闭环并支持阵列局部间距

接入 SCDM probe/edit/cache/校验链路，增强孔组、阵列、关系式和参数表交互。

支持阵列相邻段间距、移动意图切换、结果回滚校验，并补充对应回归脚本。

step_editor/window_state.py

@@ -42,6 +42,7 @@ from .relation_formulas import (
     parse_relation_formula,
     relation_value_to_text,
     rewrite_relation_formula_ids,
+    validate_relation_formula_graph,
 )
 from .scdm_backend import resolve_scdm_backend
 from .scdm_edit_runner import run_scdm_edit_job
@@ -3100,6 +3101,7 @@ class WindowStateMixin:
         text = self.relation_formula_input.text().strip() if hasattr(self, "relation_formula_input") else ""
         try:
             formula = parse_relation_formula(text)
+            self._validate_relation_formula_graph(formula)
             if not replay_active:
                 self._validate_relation_formula_references(formula)
         except RelationFormulaError as exc:
@@ -3453,6 +3455,18 @@ class WindowStateMixin:
         for ref in formula.references:
             self._relation_value_for_ref(ref)
 
+    def _validate_relation_formula_graph(self, new_formula) -> None:
+        formulas = []
+        for item in getattr(self, "relation_formula_items", []) or []:
+            if not bool(item.get("enabled", True)):
+                continue
+            try:
+                formulas.append(parse_relation_formula(str(item.get("text") or "")))
+            except RelationFormulaError:
+                continue
+        formulas.append(new_formula)
+        validate_relation_formula_graph(formulas)
+
     def _relation_parameter_supported(self, ref: ObjectParameterRef, *, target: bool = False) -> None:
         if target and self._relation_visible_spec_for_ref(ref) is not None:
             return
@@ -4565,7 +4579,7 @@ class WindowStateMixin:
         return inner_wires > 0 or boundary_edges >= 16
 
     def _scdm_selection_status_message(self, scdm_specs: list[dict[str, object]]) -> str:
-        if self.selected_kind not in {"feature", "face", "edge"}:
+        if self.selected_kind not in {"feature", "face", "edge", "solid", "part"}:
             return ""
         if self.model is None:
             return ""
@@ -8915,8 +8929,12 @@ class WindowStateMixin:
 
     def _scdm_property_target_value(self, spec: dict[str, object], text: str) -> object:
         value_type = str(spec.get("value_type") or "number")
+        unit_scale = _float_or_none(spec.get("scdm_unit_scale"))
+        if unit_scale is None or unit_scale <= 0:
+            unit_scale = 1.0
         if value_type == "vector3":
-            return list(self._parse_property_vector3(text))
+            values = list(self._parse_property_vector3(text))
+            return [value * unit_scale for value in values] if self._scdm_property_uses_length_units(spec) else values
         if value_type in {"number", "positive"}:
             try:
                 value = float(text)
@@ -8924,11 +8942,32 @@ class WindowStateMixin:
                 raise ValueError("请输入数字形式的目标值。") from exc
             if value_type == "positive" and value <= 0:
                 raise ValueError("请输入大于 0 的目标值。")
-            return value
+            return value * unit_scale if self._scdm_property_uses_length_units(spec) else value
         if value_type == "command":
             return True
         return text
 
+    @staticmethod
+    def _scdm_property_uses_length_units(spec: dict[str, object]) -> bool:
+        key = str(spec.get("scdm_capability_key") or spec.get("key") or "")
+        value_type = str(spec.get("value_type") or "")
+        if value_type == "vector3":
+            return True
+        suffixes = (
+            ".diameter",
+            ".radius",
+            ".offset",
+            ".width",
+            ".depth",
+            ".height",
+            ".distance",
+            ".thickness",
+            ".spacing",
+            ".segment_spacing",
+            ".position",
+        )
+        return key.endswith(suffixes)
+
     @Slot(object)
     def _finish_scdm_edit_action(self, result: object) -> None:
         if hasattr(self, "_reroute_to_ui_thread") and self._reroute_to_ui_thread(lambda result=result: self._finish_scdm_edit_action(result)):