[6.x] Fix backup downloads

[brianjhanson]

Fixes backup downloads

[semanticdiff-com]

Review changes with  

Changed Files

File	Status
resources/js/components/utilities/DatabaseBackup.vue	29% smaller
resources/js/composables/useCraftData.ts	0% smaller
resources/translations/en/app.php	Unsupported file format
src/Http/Controllers/Utilities/DbBackupController.php	Unsupported file format
src/Http/Middleware/HandleInertiaRequests.php	Unsupported file format

[linear-code]

CMS-1903 Download button on backups utility is broken

[Copilot]

Pull request overview

Fixes database backup downloads in the Craft CP Inertia UI by ensuring download requests are handled as real file downloads (rather than XHR/Inertia responses), and by aligning the controller response behavior with the CP’s flash-message conventions.

Changes:

• Share CSRF token name/value via the Inertia middleware so native form posts can include a valid CSRF input.
• Update the DB backup utility UI to submit natively when downloading (and use Inertia form posting only for non-download flows).
• Refactor DbBackupController to use RespondsWithFlash for success/failure responses and to parse the download flag via $request->boolean().

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 5 comments.

File	Description
src/Http/Middleware/HandleInertiaRequests.php	Adds CSRF token name/value to shared Inertia craft props for use by native form submissions.
src/Http/Controllers/Utilities/DbBackupController.php	Switches error/success handling to RespondsWithFlash and uses boolean request parsing for downloadBackup.
resources/js/composables/useCraftData.ts	Extends the CraftData TypeScript interface to include CSRF token name/value.
resources/js/components/utilities/DatabaseBackup.vue	Uses a Vue wrapper checkbox + native form submission for downloads, and injects a CSRF hidden input.

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