chore: remove sablier, scrapy, and vpn stacks

Remove three unused stacks and related configuration:
- Removed sablier, scrapy, vpn from compose includes
- Deleted sablier/compose.yaml, scrapy/compose.yaml, vpn/compose.yaml
- Removed scrapy-backup from restic config
- Removed scrapy volume mounts from restic compose
- Removed SABLIER, SCRAPY, VPN env vars from arty.yml
- Cleaned up sexy/uploads directory

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

restic/compose.yaml

@@ -24,8 +24,6 @@ services:
       - backup_mattermost_plugins:/volumes/mattermost_plugins:ro
       - backup_tandoor_staticfiles:/volumes/tandoor_staticfiles:ro
       - backup_tandoor_mediafiles:/volumes/tandoor_mediafiles:ro
-      - backup_scrapyd_data:/volumes/scrapyd_data:ro
-      - backup_scrapy_code:/volumes/scrapy_code:ro
       - backup_n8n_data:/volumes/n8n_data:ro
       - backup_filestash_data:/volumes/filestash_data:ro
       - backup_linkwarden_data:/volumes/linkwarden_data:ro
@@ -108,12 +106,6 @@ volumes:
   backup_tandoor_mediafiles:
     name: tandoor_mediafiles
     external: true
-  backup_scrapyd_data:
-    name: scrapy_scrapyd_data
-    external: true
-  backup_scrapy_code:
-    name: scrapy_scrapy_code
-    external: true
   backup_n8n_data:
     name: n8n_n8n_data
     external: true