fix(rgi): diagnostic download route — tries multiple URL patterns

Download route now:
- Calls fileVisibility with documentTypeId (if provided)
- Calls confirmOnView with documentPk
- Tries 3 different download URL patterns until one works
- Add &debug=1 to see diagnostic results instead of downloading
- Page now passes documentTypeId in download link

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/app/(modules)/rgi-test/page.tsx

@@ -296,7 +296,7 @@ function IssuedDocsPanel({
           </div>
           <Button size="sm" variant="outline" className="shrink-0 gap-1" asChild>
             <a
-              href={`/api/eterra/rgi/download-doc?workspaceId=${doc.workspaceId || workspaceId}&applicationId=${doc.applicationId || applicationPk}&documentPk=${doc.documentPk}`}
+              href={`/api/eterra/rgi/download-doc?workspaceId=${doc.workspaceId || workspaceId}&applicationId=${doc.applicationId || applicationPk}&documentPk=${doc.documentPk}&documentTypeId=${doc.documentTypeId}`}
               target="_blank"
               rel="noopener noreferrer"
             >