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

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

packages/db/src/schema/lists.ts

@@ -19,13 +19,15 @@ export const lists = pgTable("list", {
   publicId: varchar("publicId", { length: 12 }).notNull().unique(),
   name: varchar("name", { length: 255 }).notNull(),
   index: integer("index").notNull(),
-  createdBy: uuid("createdBy")
-    .notNull()
-    .references(() => users.id),
+  createdBy: uuid("createdBy").references(() => users.id, {
+    onDelete: "set null",
+  }),
   createdAt: timestamp("createdAt").defaultNow().notNull(),
   updatedAt: timestamp("updatedAt"),
   deletedAt: timestamp("deletedAt"),
-  deletedBy: uuid("deletedBy").references(() => users.id),
+  deletedBy: uuid("deletedBy").references(() => users.id, {
+    onDelete: "set null",
+  }),
   boardId: bigint("boardId", { mode: "number" })
     .notNull()
     .references(() => boards.id, { onDelete: "cascade" }),