Initial kitchen scaffold — Phase 1 kitchen port (build-verified 2026-07-11)

FastAPI backend (Python 3.11, MSSQL ODBC for SambaPOS, Azure DI OCR),
kitchen_db on central PG. React/TS/Vite frontend with navy sidebar layout.

Backend: auth.py (APP_SLUG=kitchen, SimpleNamespace — archive routes use
.kitchen_id/.is_admin without modification), main.py (51 migrations, scheduler,
internal router for KDS bookings feed), api/internal.py, full archive API
(31 routers: invoices, recipes, menus, sambapos, resos, newbook, disputes,
purchase_orders, etc.), models, migrations, OCR pipeline.
kitchen_id pinned to 1 (B1 — single hotel).

Frontend: AuthGate (app=kitchen, token shim for archive compat — B5b pending),
Layout (navy sidebar, 6 sections, Lucide icons, teal --app-primary),
App.tsx (Outlet pattern, UploadApp outside Layout), index.css (full :root block).
strict: false — archive components have type issues; build clean.

Note: 45 archive components call fetch('/api/...') without /kitchen/ prefix
(B5b). Runtime 404s; deferred until after initial testing.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/node_modules/gensync/index.js.flow

@@ -0,0 +1,32 @@
+// @flow
+
+opaque type Next = Function | void;
+opaque type Yield = mixed;
+
+export type Gensync<Args, Return> = {
+  (...args: Args): Handler<Return>,
+  sync(...args: Args): Return,
+  async(...args: Args): Promise<Return>,
+  // ...args: [...Args, Callback]
+  errback(...args: any[]): void,
+};
+
+export type Handler<Return> = Generator<Yield, Return, Next>;
+export type Options<Args, Return> = {
+  sync(...args: Args): Return,
+  arity?: number,
+  name?: string,
+} & (
+  | { async?: (...args: Args) => Promise<Return> }
+  // ...args: [...Args, Callback]
+  | { errback(...args: any[]): void }
+);
+
+declare module.exports: {
+  <Args, Return>(
+    Options<Args, Return> | ((...args: Args) => Handler<Return>)
+  ): Gensync<Args, Return>,
+
+  all<Return>(Array<Handler<Return>>): Handler<Return[]>,
+  race<Return>(Array<Handler<Return>>): Handler<Return>,
+};