Support long breadcrumb trails - #3121

Summary

• replace the direct x-tabuna-breadcrumbs rendering with a dedicated Orchid breadcrumb component
• keep short breadcrumb trails unchanged while collapsing the middle of trails longer than three items into a dropdown
• preserve the first item and the final two items so users retain both hierarchy context and the current destination
• render linked and non-linked crumbs appropriately, mark the current item, and provide breadcrumb navigation semantics

Why

Long breadcrumb trails currently render every item inline. On narrower layouts this consumes significant horizontal space and makes the page hierarchy difficult to scan. Collapsing only the middle section keeps the most useful context visible without losing access to intermediate destinations.

Implementation

The new orchid-breadcrumbs Blade component reads the current trail from the breadcrumb manager and prepares one of two representations:

• up to three crumbs: render the complete trail
• more than three crumbs: render the first crumb, a dropdown containing the middle crumbs, and the final two crumbs

The component does not render when no breadcrumbs are registered. The dashboard now delegates breadcrumb presentation to this component, and the component is registered through FoundationServiceProvider.

Verification

• php -l src/Platform/Components/Breadcrumbs.php
• php -l src/Platform/Providers/FoundationServiceProvider.php
• pint --test src/Platform/Components/Breadcrumbs.php src/Platform/Providers/FoundationServiceProvider.php
• verified that the branch contains exactly one commit on top of master