fixing tests4 - columns have required flag from now on

common/proto/table_definition.proto

@@ -193,6 +193,9 @@ message ColumnDefinition {
   // Canonical uppercase ISO-4217 currency code. Required for MONEY and forbidden
   // for every other field type.
   string currency = 5;
+
+  // When true, the server rejects omitted or explicitly null values.
+  bool required = 6;
 }
 
 // Response after table creation (success + DDL preview).

common/src/proto/komp_ac.table_definition.rs

@@ -158,6 +158,9 @@ pub struct ColumnDefinition {
     /// for every other field type.
     #[prost(string, tag = "5")]
     pub currency: ::prost::alloc::string::String,
+    /// When true, the server rejects omitted or explicitly null values.
+    #[prost(bool, tag = "6")]
+    pub required: bool,
 }
 /// Response after table creation (success + DDL preview).
 #[derive(serde::Serialize, serde::Deserialize)]

web/src/schema/mod.rs

@@ -731,6 +731,7 @@ pub(crate) fn proto_columns(columns: &[ColumnDefinition]) -> Vec<ProtoColumnDefi
             },
             quantity_ledger: column.quantity_ledger,
             currency: column.currency.clone(),
+            required: false,
         })
         .collect()
 }