Kundenportal Vertragsanfragen ergänzen

backend/db/schema/historyitems.ts

@@ -35,6 +35,7 @@ import { inventoryitemgroups } from "./inventoryitemgroups"
 import { authUsers } from "./auth_users"
 import {files} from "./files";
 import { memberrelations } from "./memberrelations";
+import { contracts } from "./contracts";
 
 export const historyitems = pgTable("historyitems", {
     id: bigint("id", { mode: "number" })
@@ -52,6 +53,11 @@ export const historyitems = pgTable("historyitems", {
         { onDelete: "cascade" }
     ),
 
+    contract: bigint("contract", { mode: "number" }).references(
+        () => contracts.id,
+        { onDelete: "cascade" }
+    ),
+
     tenant: bigint("tenant", { mode: "number" })
         .notNull()
         .references(() => tenants.id),