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/axios/lib/helpers/progressEventReducer.js

@@ -0,0 +1,54 @@
+import speedometer from './speedometer.js';
+import throttle from './throttle.js';
+import utils from '../utils.js';
+
+export const progressEventReducer = (listener, isDownloadStream, freq = 3) => {
+  let bytesNotified = 0;
+  const _speedometer = speedometer(50, 250);
+
+  return throttle((e) => {
+    if (!e || typeof e.loaded !== 'number') {
+      return;
+    }
+    const rawLoaded = e.loaded;
+    const total = e.lengthComputable ? e.total : undefined;
+    const loaded = total != null ? Math.min(rawLoaded, total) : rawLoaded;
+    const progressBytes = Math.max(0, loaded - bytesNotified);
+    const rate = _speedometer(progressBytes);
+
+    bytesNotified = Math.max(bytesNotified, loaded);
+
+    const data = {
+      loaded,
+      total,
+      progress: total ? loaded / total : undefined,
+      bytes: progressBytes,
+      rate: rate ? rate : undefined,
+      estimated: rate && total ? (total - loaded) / rate : undefined,
+      event: e,
+      lengthComputable: total != null,
+      [isDownloadStream ? 'download' : 'upload']: true,
+    };
+
+    listener(data);
+  }, freq);
+};
+
+export const progressEventDecorator = (total, throttled) => {
+  const lengthComputable = total != null;
+
+  return [
+    (loaded) =>
+      throttled[0]({
+        lengthComputable,
+        total,
+        loaded,
+      }),
+    throttled[1],
+  ];
+};
+
+export const asyncDecorator =
+  (fn) =>
+  (...args) =>
+    utils.asap(() => fn(...args));