Added names to objects

kiln-core/src/object_def.rs

@@ -51,6 +51,10 @@ pub struct ObjectDef {
     /// not subject to any rate limit — mutations take effect immediately after
     /// the frame's action queue is drained.
     pub tags: HashSet<String>,
+    /// Optional unique human-readable name for this object. `None` if unnamed.
+    /// Names are validated for uniqueness at map-load time; a duplicate name is
+    /// cleared to `None` (the object survives but becomes anonymous).
+    pub name: Option<String>,
 }
 
 impl ObjectDef {
@@ -80,6 +84,7 @@ impl ObjectDef {
             pushable: false,
             script_name: None,
             tags: HashSet::new(),
+            name: None,
         }
     }
 }