Phase 1: Monorepo scaffold, database, and dev environment

Turborepo monorepo with @forte/shared and @forte/backend workspaces.
Docker Compose dev env with PostgreSQL 16 + Valkey 8.
Fastify server with Pino JSON logging, request ID tracing, and
health endpoint. Drizzle ORM with company + location tables.

Includes:
- Root config (turbo, tsconfig, eslint, prettier)
- @forte/shared: types, schemas, currency/date utils
- @forte/backend: Fastify entry, plugins (database, redis, cors,
  error-handler, dev-auth), health route, Drizzle schema + migration
- Dev auth bypass via X-Dev-Company/Location/User headers
- Vitest integration test with clean DB per test (forte_test)
- Seed script for dev company + location

packages/backend/src/db/schema/stores.ts

@@ -0,0 +1,37 @@
+import { pgTable, uuid, varchar, text, jsonb, timestamp, boolean } from 'drizzle-orm/pg-core'
+
+export const companies = pgTable('company', {
+  id: uuid('id').primaryKey().defaultRandom(),
+  name: varchar('name', { length: 255 }).notNull(),
+  phone: varchar('phone', { length: 50 }),
+  email: varchar('email', { length: 255 }),
+  timezone: varchar('timezone', { length: 100 }).notNull().default('America/Chicago'),
+  notes: text('notes'),
+  createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
+  updatedAt: timestamp('updated_at', { withTimezone: true }).notNull().defaultNow(),
+})
+
+export const locations = pgTable('location', {
+  id: uuid('id').primaryKey().defaultRandom(),
+  companyId: uuid('company_id')
+    .notNull()
+    .references(() => companies.id),
+  name: varchar('name', { length: 255 }).notNull(),
+  address: jsonb('address').$type<{
+    street?: string
+    city?: string
+    state?: string
+    zip?: string
+  }>(),
+  phone: varchar('phone', { length: 50 }),
+  email: varchar('email', { length: 255 }),
+  timezone: varchar('timezone', { length: 100 }),
+  isActive: boolean('is_active').notNull().default(true),
+  createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
+  updatedAt: timestamp('updated_at', { withTimezone: true }).notNull().defaultNow(),
+})
+
+export type Company = typeof companies.$inferSelect
+export type CompanyInsert = typeof companies.$inferInsert
+export type Location = typeof locations.$inferSelect
+export type LocationInsert = typeof locations.$inferInsert