feat: add account deletion functionality with cascade delete for work… (#33)

* feat: add account deletion functionality with cascade delete for workspace relations

* fix: add cascade delete to workspace user foreign key constraints

* fix: change onDelete action to set null for user references in schema

* feat: tweak design

---------

Co-authored-by: Henry <henry_ball@hotmail.co.uk>
Co-authored-by: Henry <30578846+hjball@users.noreply.github.com>

packages/db/src/schema/imports.ts

@@ -26,9 +26,9 @@ export const imports = pgTable("import", {
   publicId: varchar("publicId", { length: 12 }).notNull().unique(),
   source: importSourceEnum("source").notNull(),
   status: importStatusEnum("status").notNull(),
-  createdBy: uuid("createdBy")
-    .notNull()
-    .references(() => users.id),
+  createdBy: uuid("createdBy").references(() => users.id, {
+    onDelete: "set null",
+  }),
   createdAt: timestamp("createdAt").defaultNow().notNull(),
 }).enableRLS();