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>

backend/migrations/add_ocr_weight_setting.py

@@ -0,0 +1,24 @@
+"""
+Migration: Add OCR weight-as-quantity setting
+- ocr_use_weight_as_quantity: For KG items, use weight as quantity when it matches total
+"""
+import logging
+from sqlalchemy import text
+from database import AsyncSessionLocal
+
+logger = logging.getLogger(__name__)
+
+
+async def run_migration():
+    """Add ocr_use_weight_as_quantity column to kitchen_settings"""
+    async with AsyncSessionLocal() as db:
+        try:
+            await db.execute(text("""
+                ALTER TABLE kitchen_settings
+                ADD COLUMN IF NOT EXISTS ocr_use_weight_as_quantity BOOLEAN DEFAULT FALSE
+            """))
+            await db.commit()
+            logger.info("OCR weight setting migration completed successfully")
+        except Exception as e:
+            logger.warning(f"OCR weight setting migration warning: {e}")
+            await db.rollback()