new form page row + import page dialog fix

common/proto/tables_data.proto

@@ -104,6 +104,12 @@ service TablesData {
   // - If the physical table is missing but the definition exists, returns INTERNAL
   rpc GetTableDataCount(GetTableDataCountRequest) returns (komp_ac.common.CountResponse);
 
+  // Fetch the last non-deleted row by id together with the exact row count.
+  // This is the efficient form-opening path: unlike GetTableDataByPosition at
+  // the final position, it does not walk the table through a large OFFSET, and
+  // it avoids a separate client/server round trip for the count.
+  rpc GetLastTableData(GetLastTableDataRequest) returns (GetLastTableDataResponse);
+
   // Fetch the N-th non-deleted row by id order (1-based), then return its full data.
   //
   // Behavior:
@@ -420,6 +426,18 @@ message GetTableDataCountRequest {
   string table_name = 2;
 }
 
+// Fetch the last visible row and the exact number of visible rows.
+message GetLastTableDataRequest {
+  string profile_name = 1;
+  string table_name = 2;
+}
+
+message GetLastTableDataResponse {
+  int64 total_count = 1;
+  // Absent when total_count is zero.
+  GetTableDataResponse row = 2;
+}
+
 // Fetch by ordinal position among non-deleted rows (1-based).
 message GetTableDataByPositionRequest {
   // Required. Profile (schema) name.