Merge upstream main into Coincident parity

src/command.rs

@@ -1477,9 +1477,11 @@ pub enum CmdResult {
         /// Undo-history label, e.g. `"Horizontal constraint"`.
         label: &'static str,
     },
-    /// Adds an ordered Coincident relation.  Point/point selections create a
-    /// Coincident constraint; point/curve selections create the corresponding
-    /// point-on-curve relation while retaining Coincident command semantics.
+    /// Opens the Auto Constrain settings dialog from the selection prompt.
+    OpenAutoConstrainSettings,
+    /// Adds a Coincident constraint between the sub-entity points nearest
+    /// the two picked positions. The host resolves the raw points because
+    /// `CadCommand` has no document access.
     AddCoincidentConstraint {
         first: CoincidentPick,
         second: CoincidentPick,