Greptile Summary

This PR adds project-variable as a new top-level migration resource group (settings) in the wizard, parallel to platforms and api-keys, covering the store type declarations, form↔resource conversion logic, rendering guards, and label/description maps.

• migration.ts extends MigrationResource, MigrationResources, ResourcesFriendly, providerResources.appwrite, and both migrationFormToResources/resourcesToMigrationForm with the new project-variable entry, following the same patterns used for api-key and platform.
• resource-form.svelte adds a settings branch to shouldRenderGroup and a settings → 'project-variable' entry to getReportKey, keeping display logic consistent with other groups.
• importReport.svelte registers settings in labelMap and descriptionMap; because the group has no child keys, the component takes the simple-checkbox path where only the label is shown and the descriptionMap entry goes unused (the same dead-code pattern exists for backups and storage).

Confidence Score: 5/5

Safe to merge — the change is additive and follows established patterns already used for platform and api-key.

All three files introduce project-variable / settings by mirroring the exact patterns used for the prior api-key and platform additions. The form-to-resource and resource-to-form round-trip is correctly implemented, the render guard is consistent, and no existing paths are modified.

No files require special attention.

Important Files Changed

_{Reviews (2): Last reviewed commit: "Add project variable migration wizard su..." | Re-trigger Greptile}