feat(db): Drizzle ORM schema and migrations

Schema domains: users/auth, recipes, social, meal-planning, tiers/usage, webhooks.
Includes Better Auth tables, audit_logs, site_settings, push_subscriptions,
user_model_prefs, user_nutrition_goals. Migrations 0000–0008 applied.

packages/db/src/schema/webhooks.ts

@@ -0,0 +1,33 @@
+import { pgTable, text, boolean, timestamp, integer, jsonb } from "drizzle-orm/pg-core";
+import { relations } from "drizzle-orm";
+import { users } from "./users";
+
+export const webhooks = pgTable("webhooks", {
+  id: text("id").primaryKey(),
+  userId: text("user_id").notNull().references(() => users.id, { onDelete: "cascade" }),
+  url: text("url").notNull(),
+  events: text("events").array().notNull().default([]),
+  secret: text("secret").notNull(),
+  active: boolean("active").notNull().default(true),
+  createdAt: timestamp("created_at").notNull().defaultNow(),
+});
+
+export const webhookDeliveries = pgTable("webhook_deliveries", {
+  id: text("id").primaryKey(),
+  webhookId: text("webhook_id").notNull().references(() => webhooks.id, { onDelete: "cascade" }),
+  event: text("event").notNull(),
+  payload: jsonb("payload"),
+  statusCode: integer("status_code"),
+  success: boolean("success").notNull().default(false),
+  attempts: integer("attempts").notNull().default(0),
+  createdAt: timestamp("created_at").notNull().defaultNow(),
+});
+
+export const webhooksRelations = relations(webhooks, ({ one, many }) => ({
+  user: one(users, { fields: [webhooks.userId], references: [users.id] }),
+  deliveries: many(webhookDeliveries),
+}));
+
+export const webhookDeliveriesRelations = relations(webhookDeliveries, ({ one }) => ({
+  webhook: one(webhooks, { fields: [webhookDeliveries.webhookId], references: [webhooks.id] }),
+}));