aliasing of account fields

common/src/proto/komp_ac.table_definition.rs

@@ -363,6 +363,9 @@ pub struct ColumnBehavior {
     /// Logical source column name, empty for ordinary user-defined columns.
     #[prost(string, tag = "3")]
     pub generated_from: ::prost::alloc::string::String,
+    /// True when clients may offer this column in an alias rename picker.
+    #[prost(bool, tag = "4")]
+    pub renameable: bool,
 }
 /// A script that targets a specific column in a table.
 #[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]