fix(dimension): repair QDIM workflows

src/app/settings.rs

@@ -201,6 +201,10 @@ pub struct UserSettings {
     /// QDIM extension-origin priority: 0 = endpoints, 1 = intersections.
     #[serde(default)]
     pub quick_dimension_snap_priority: u8,
+    /// DIMCONTINUEMODE: 1 inherits the base dimension's layer/style; 0 uses
+    /// the current creation layer/style. Registry-style, app-level preference.
+    #[serde(default = "default_dimension_continue_mode")]
+    pub dimension_continue_mode: i16,
     /// TEXTFILL: fill TrueType glyphs (true) or draw them hollow (false).
     pub textfill: bool,
     /// When true, saving over an existing file first copies it to a sibling
@@ -250,6 +254,10 @@ fn default_clipromptlines() -> i32 {
     3
 }
 
+fn default_dimension_continue_mode() -> i16 {
+    1
+}
+
 fn deserialize_clipromptlines<'de, D>(de: D) -> Result<i32, D::Error>
 where
     D: serde::Deserializer<'de>,
@@ -288,6 +296,7 @@ impl Default for UserSettings {
             osmode: 575 | OSMODE_SUPPRESS,
             texteditmode: false,
             quick_dimension_snap_priority: 0,
+            dimension_continue_mode: 1,
             textfill: true,
             backup_on_save: true,
             file_assoc_enabled: true,