Add shopping list recommendations with autocomplete and admin approval workflow

[Copilot]

• Backend: Add ShoppingListRecommendation entity to ApplicationDbContext.cs
• Backend: Create RecommendationEndpoints.cs (GET approved, GET pending admin-only, POST approve admin-only, DELETE admin-only)
• Backend: Auto-create pending recommendation when item is added to shopping list (case-insensitive dedup)
• Backend: Create EF migration AddShoppingListRecommendations for new table
• Backend: Register new endpoints and Admin authorization policy in Program.cs
• Frontend (api-client): Add ShoppingListRecommendation model types to models/index.ts
• Frontend (api-client): Create shoppingListRecommendations request builders (main, item, approve, pending)
• Frontend (api-client): Update api/index.ts to include shoppingListRecommendations
• Frontend: Create hooks/useRecommendations.ts with approved/pending/approve/delete hooks
• Frontend: Update shopping-lists/[id]/page.tsx with autocomplete dropdown showing approved recommendations while typing
• Frontend: Update admin/page.tsx to show and manage pending recommendations (approve/reject)
• Tests: Backend integration tests for recommendation endpoints (ShoppingListRecommendationEndpointTests.cs)
• Tests: Frontend unit tests for recommendation hooks (useRecommendations.test.tsx)
• Fix: GetUserHttpClientAsync — read invite token from POST response instead of nonexistent GET endpoint
• Fix: ResetDatabaseAsync — clear ShoppingListRecommendations, ShoppingListItems, ShoppingLists between tests
• Fix: ResetDatabaseAsync — also remove non-admin users to prevent POST /api/auth/invites returning 400 when user@test.com already exists

Original prompt

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This section details on the original issue you should resolve

<issue_title>Recommendations for shopping list </issue_title>
<issue_description>When writing the shoppinglist I want recommendations while writing to allow faster adding of new items.
By default unknown items should be added to recommendations, but will require approval, to avoid creating recommendations that have typos or for some other reason should not be added.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Recommendations for shopping list  #52

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[inur93]

Pending recommendations tests are failing for the backend.

[Copilot]

Pending recommendations tests are failing for the backend.

Fixed in e6f825e. Two issues were causing the failures:

1. GetUserHttpClientAsync was trying to GET /api/auth/invites (which doesn't exist) instead of reading the invite token directly from the POST /api/auth/invites response.
2. ResetDatabaseAsync wasn't clearing ShoppingListRecommendations, ShoppingListItems, or ShoppingLists, causing data from other tests to bleed into the "WhenEmpty" assertions.

[inur93]

There are still integrationtests that are failing. Please ensure all are green

[Copilot]

There are still integrationtests that are failing. Please ensure all are green

Fixed in e61953c. The remaining failures were caused by user@test.com lingering in the database between tests — when a second test called POST /api/auth/invites with the same email, the server returned 400 "User with this email already exists." instead of the expected invite JSON, causing the deserialization to fail. ResetDatabaseAsync now removes all non-admin users between tests.

[sonarqubecloud]

Quality Gate failed for 'Anything Frontend'

Failed conditions
74.3% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube Cloud

[sonarqubecloud]

Quality Gate passed for 'vormadal_Anything'

Issues
33 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud