fix(adminfront): fix TS error and CI dependency resolution

- Fix 'unknown' to 'string' type mismatch in UserBulkUploadModal.tsx
- Update CI script to install from workspace root (common) for proper dependency resolution
- Use 'env CI=true' for better shell compatibility

adminfront/src/features/users/components/UserBulkUploadModal.tsx

@@ -333,7 +333,7 @@ export function UserBulkUploadModal({
             finalUser.jobTitle = firstAdditional.jobTitle;
             if (finalUser.metadata) {
               finalUser.metadata.employee_id =
-                firstAdditional.metadata?.employee_id;
+                (firstAdditional.metadata?.employee_id as string) || "";
             }
 
             finalUser.additionalAppointments = [