feat: standardize enterprise detail pages (#162)
## Summary
- introduce a shared enterprise-detail composition layer for Filament detail pages
- migrate BackupSet, BaselineSnapshot, EntraGroup, and OperationRun detail screens to the shared summary-first layout
- add regression and unit coverage for section hierarchy, related context, degraded states, and duplicate fact/badge presentation
## Scope
- adds shared support classes under `app/Support/Ui/EnterpriseDetail`
- adds shared enterprise detail Blade partials under `resources/views/filament/infolists/entries/enterprise-detail`
- updates touched Filament resources/pages to use the shared detail shell
- includes Spec 133 artifacts under `specs/133-detail-page-template`
## Notes
- branch: `133-detail-page-template`
- base: `dev`
- commit: `fd294c7`
Co-authored-by: Ahmed Darrazi <ahmed.darrazi@live.de>
Reviewed-on: #162
ahmido
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