feat: update workspace and subscripton schema

packages/db/migrations/meta/_journal.json

@@ -78,6 +78,27 @@
       "when": 1757271312974,
       "tag": "20250907185512_AddUnlimitedSeatsToSubscription",
       "breakpoints": true
+    },
+    {
+      "idx": 11,
+      "version": "7",
+      "when": 1757533858687,
+      "tag": "20250910195058_RemoveNotNullConstraintFromReferenceIdOnSubsriptions",
+      "breakpoints": true
+    },
+    {
+      "idx": 12,
+      "version": "7",
+      "when": 1757534656098,
+      "tag": "20250910200416_AddWorkspaceSlugChecks",
+      "breakpoints": true
+    },
+    {
+      "idx": 13,
+      "version": "7",
+      "when": 1757535838766,
+      "tag": "20250910202358_AddCascadeSetNullToReferenceIdOnSubsriptions",
+      "breakpoints": true
     }
   ]
 }

packages/db/src/schema/subscriptions.ts

@@ -13,9 +13,10 @@ import { workspaces } from "./workspaces";
 export const subscription = pgTable("subscription", {
   id: bigserial("id", { mode: "number" }).primaryKey(),
   plan: varchar("plan", { length: 255 }).notNull(),
-  referenceId: varchar("referenceId", { length: 12 })
-    .notNull()
-    .references(() => workspaces.publicId),
+  referenceId: varchar("referenceId", { length: 12 }).references(
+    () => workspaces.publicId,
+    { onDelete: "set null" },
+  ),
   stripeCustomerId: varchar("stripeCustomerId", { length: 255 }),
   stripeSubscriptionId: varchar("stripeSubscriptionId", { length: 255 }),
   status: varchar("status", { length: 255 }).notNull(),

packages/db/src/schema/workspaces.ts

@@ -2,6 +2,7 @@ import { relations } from "drizzle-orm";
 import {
   bigint,
   bigserial,
+  boolean,
   pgEnum,
   pgTable,
   text,
@@ -103,3 +104,17 @@ export const slugs = pgTable("workspace_slugs", {
   slug: varchar("slug", { length: 255 }).notNull().unique(),
   type: slugTypeEnum("type").notNull(),
 });
+
+export const slugChecks = pgTable("workspace_slug_checks", {
+  id: bigserial("id", { mode: "number" }).primaryKey(),
+  slug: varchar("slug", { length: 255 }).notNull(),
+  available: boolean("available").notNull(),
+  reserved: boolean("reserved").notNull(),
+  workspaceId: bigint("workspaceId", { mode: "number" }).references(
+    () => workspaces.id,
+  ),
+  createdBy: uuid("createdBy").references(() => users.id, {
+    onDelete: "set null",
+  }),
+  createdAt: timestamp("createdAt").defaultNow().notNull(),
+}).enableRLS();