Homepage: tab layout, RSS proxy, and deploy docs

- Reorganize services into OPS/DATA/FEEDS/LINKS tabs with compact DB grid
- Add rss-proxy service (29 FDE feeds) and Intel feed groups
- Update Palantir theme CSS/JS; Dell wordmark SVG; Proxmox API token auth
- Add deploy/docker-compose.homepage.yml and config/homepage/README.md
- Stop tracking runtime logs; add .gitignore

.gitignore

@@ -0,0 +1,7 @@
+# Runtime logs (not config)
+config/homepage/logs/
+*.log
+
+# OS / editor
+.DS_Store
+*~