Improve security by verifying user authentication and authorization

Update the 'process-selective-approval' Supabase function to enforce authentication and authorization checks before processing requests. Also, modify the 'upload-image' function to prevent banned users from uploading images. Additionally, enable future React Router v7 features for enhanced navigation.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 6d6e48da-5b1b-47f9-a65c-9fa4a352936a
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/7cdf4e95-3f41-4180-b8e3-8ef56d032c0e/6d6e48da-5b1b-47f9-a65c-9fa4a352936a/u05utRo

src/components/moderation/ModerationQueue.tsx

@@ -544,7 +544,6 @@ export const ModerationQueue = forwardRef<ModerationQueueRef>((props, ref) => {
         {
           body: {
             itemIds: failedItems.map(i => i.id),
-            userId: user?.id,
             submissionId: item.id
           }
         }
@@ -813,7 +812,6 @@ export const ModerationQueue = forwardRef<ModerationQueueRef>((props, ref) => {
               {
                 body: {
                   itemIds: submissionItems.map(i => i.id),
-                  userId: user?.id,
                   submissionId: item.id
                 }
               }