feat: add "/inventory-catalog" endpoint

[kevbang]

CC-101

• Adding an "Item/Inventory" catalog so a restaurant owner can see the possible items that can be inside of a store. This does not keep track of the actual stock value of each item or ingredient:

For details, refer to Copilot review

[WChunter21]

What's the Validation error about?

[Copilot]

Pull request overview

This PR adds a new inventory catalog feature to help restaurant owners manage their ingredient catalog. The feature introduces a new Blazor component at /inventory-catalog that provides a UI for viewing, searching, filtering, sorting, and managing catalog items. The catalog tracks item metadata (name, SKU, category, unit, price, supplier, notes) but does not track actual stock quantities—that functionality is separate.

Changes:

• Added InventoryCatalogDTO with unit tests for managing catalog item data
• Created a full-featured Blazor UI component with search, filtering, sorting, pagination, and CRUD operations
• Added navigation menu item for the new inventory catalog page
• Removed hardcoded credentials from appsettings.json (security improvement)
• Removed Playwright test project from solution and CI workflow

Reviewed changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 19 comments.

Show a summary per file

File	Description
CulinaryCommandApp/Inventory/DTOs/InventoryCatalogDTO.cs	New DTO defining the structure for inventory catalog items with properties for ID, name, SKU, category, unit, price, supplier, and notes
CulinaryCommandUnitTests/Inventory/DTOs/InventoryCatalogDTOTests.cs	Comprehensive unit tests for the InventoryCatalogDTO covering default values, property setters, null handling, and decimal precision
CulinaryCommandApp/Inventory/Pages/Inventory/InventoryCatalog.razor	Interactive Blazor component implementing the catalog UI with search, filtering, sorting, pagination, and modal-based CRUD operations
CulinaryCommandApp/Inventory/Pages/Inventory/InventoryCatalog.razor.css	Comprehensive styling for the catalog page with responsive design, custom color scheme, and modal styling
CulinaryCommandApp/Components/Layout/NavMenu.razor	Added navigation link to the new Inventory Catalog page
CulinaryCommandApp/appsettings.json	Removed hardcoded environment variables including a Cognito client secret (positive security change)
CulinaryCommandApp/CulinaryCommand.sln	Removed Playwright test project reference from the solution
.github/workflows/validate.yml	Commented out Playwright setup and installation steps in the CI workflow

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