renamed again and fixed some minor stuff

server/src/table_structure/docs/response.txt

@@ -4,7 +4,7 @@ grpcurl -plaintext \
     "table_name": "2025_customer"
   }' \
   localhost:50051 \
-  KompAC.table_structure.TableStructureService/GetTableStructure
+  komp_ac.table_structure.TableStructureService/GetTableStructure
 {
   "columns": [
     {

server/src/table_structure/handlers/table_structure.rs

@@ -1,5 +1,5 @@
 // src/table_structure/handlers/table_structure.rs
-use common::proto::KompAC::table_structure::{
+use common::proto::komp_ac::table_structure::{
     GetTableStructureRequest, TableColumn, TableStructureResponse,
 };
 use sqlx::PgPool;