feat: prompt user to create subscription if inactive

packages/db/migrations/20250902085406_AddSubscriptions.sql

@@ -0,0 +1,23 @@
+CREATE TABLE IF NOT EXISTS "subscription" (
+	"id" bigserial PRIMARY KEY NOT NULL,
+	"plan" varchar(255) NOT NULL,
+	"referenceId" varchar(12) NOT NULL,
+	"stripeCustomerId" varchar(255),
+	"stripeSubscriptionId" varchar(255),
+	"status" varchar(255) NOT NULL,
+	"periodStart" timestamp,
+	"periodEnd" timestamp,
+	"cancelAtPeriodEnd" boolean,
+	"seats" integer,
+	"trialStart" timestamp,
+	"trialEnd" timestamp,
+	"createdAt" timestamp DEFAULT now() NOT NULL,
+	"updatedAt" timestamp DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+ALTER TABLE "subscription" ENABLE ROW LEVEL SECURITY;--> statement-breakpoint
+DO $$ BEGIN
+ ALTER TABLE "subscription" ADD CONSTRAINT "subscription_referenceId_workspace_publicId_fk" FOREIGN KEY ("referenceId") REFERENCES "public"."workspace"("publicId") ON DELETE no action ON UPDATE no action;
+EXCEPTION
+ WHEN duplicate_object THEN null;
+END $$;