feat: post-signup onboarding wizard (dietary/allergen prefs, notifications, skippable) (v0.77.0)

New accounts land on a 3-step wizard after signup — welcome, dietary preferences & allergens, notification opt-in — skippable at every step, shown once via a users.onboardingCompletedAt gate in the (app) layout. Existing accounts are backfilled as already-onboarded.

Also gives the allergen-preferences step a real write path: user_allergens previously only had a GDPR-export read.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

packages/db/src/migrations/0064_thick_drax.sql

@@ -0,0 +1,5 @@
+ALTER TABLE "users" ADD COLUMN "onboarding_completed_at" timestamp;--> statement-breakpoint
+ALTER TABLE "users" ADD COLUMN "dietary_tags" jsonb DEFAULT '{}'::jsonb;--> statement-breakpoint
+-- Backfill existing accounts as already onboarded — the wizard is only for
+-- users who sign up after this migration, not everyone who predates it.
+UPDATE "users" SET "onboarding_completed_at" = "created_at" WHERE "onboarding_completed_at" IS NULL;

packages/db/src/migrations/meta/_journal.json

@@ -449,6 +449,13 @@
       "when": 1784885406472,
       "tag": "0063_sharp_stone_men",
       "breakpoints": true
+    },
+    {
+      "idx": 64,
+      "version": "7",
+      "when": 1784885885146,
+      "tag": "0064_thick_drax",
+      "breakpoints": true
     }
   ]
 }

packages/db/src/schema/users.ts

@@ -4,11 +4,25 @@ import {
   timestamp,
   boolean,
   integer,
+  jsonb,
   pgEnum,
   primaryKey,
 } from "drizzle-orm/pg-core";
 import { relations } from "drizzle-orm";
 
+// Mirrors recipes.ts's DietaryTags shape — duplicated rather than imported to
+// avoid a users.ts <-> recipes.ts circular import (recipes.ts already
+// references users.ts for the authorId FK).
+export type UserDietaryTags = {
+  vegan?: boolean;
+  vegetarian?: boolean;
+  glutenFree?: boolean;
+  dairyFree?: boolean;
+  nutFree?: boolean;
+  halal?: boolean;
+  kosher?: boolean;
+};
+
 export const userRoleEnum = pgEnum("user_role", ["user", "moderator", "admin"]);
 export const tierEnum = pgEnum("tier", ["free", "pro", "family"]);
 export const unitPrefEnum = pgEnum("unit_pref", ["metric", "imperial"]);
@@ -55,6 +69,11 @@ export const users = pgTable("users", {
   unitPref: unitPrefEnum("unit_pref").notNull().default("metric"),
   locale: text("locale").notNull().default("en"),
   twoFactorEnabled: boolean("two_factor_enabled").notNull().default(false),
+  // Null = hasn't been through (or finished/skipped) the post-signup
+  // onboarding wizard yet. Set once, either on completion or on skip — both
+  // count as "done," so the wizard never shows twice.
+  onboardingCompletedAt: timestamp("onboarding_completed_at"),
+  dietaryTags: jsonb("dietary_tags").$type<UserDietaryTags>().default({}),
   createdAt: timestamp("created_at").notNull().defaultNow(),
   updatedAt: timestamp("updated_at").notNull().defaultNow(),
 });