Initial commit: YesChef family shopping list and recipe app

Backend (.NET 10 minimal API):
- Vertical slice architecture with feature folders
- Postgres via EF Core with initial migration
- JWT auth with family invite code registration
- REST endpoints for stores, shopping lists, items, recipes
- SignalR hub for real-time list collaboration (per-list groups
  and lists-overview group for live list creation/archival/progress)
- Multi-stage Dockerfile

Frontend (SvelteKit + Svelte 5 runes, Tailwind v4):
- Mobile-first PWA with web manifest and service worker
- Bottom-nav layout, login/register, lists overview, list detail,
  stores management, recipes (list/create/detail with add-to-list)
- SignalR client with reference-counted connection
- Real-time updates on both lists overview and list detail pages

Infrastructure:
- docker-compose.yml with postgres, backend, frontend services
  and Traefik labels for path-based routing (/api, /hubs to backend)
- .env.example with required config

End-to-end tests (Playwright):
- test-e2e.mjs: single-user flow (auth, stores, lists, items, recipes)
- test-e2e-multiuser.mjs: two-user real-time sync coverage

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

package-lock.json

@@ -0,0 +1,60 @@
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+  "name": "yeschef",
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+  "requires": true,
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+      "version": "1.0.0",
+      "license": "ISC",
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+      }
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+      "hasInstallScript": true,
+      "license": "MIT",
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+      "license": "Apache-2.0",
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+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
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+        "fsevents": "2.3.2"
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+    "node_modules/playwright-core": {
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+      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.59.1.tgz",
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+      "license": "Apache-2.0",
+      "bin": {
+        "playwright-core": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    }
+  }
+}