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

config/homepage/dell-technologies.svg

@@ -1,18 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 360 56" role="img" aria-label="Dell Technologies">
-  <defs>
-    <linearGradient id="dellRing" x1="0%" y1="0%" x2="100%" y2="100%">
-      <stop offset="0%" style="stop-color:#007DB8"/>
-      <stop offset="100%" style="stop-color:#00a3e0"/>
-    </linearGradient>
-    <linearGradient id="dellText" x1="0%" y1="0%" x2="100%" y2="0%">
-      <stop offset="0%" style="stop-color:#ffffff"/>
-      <stop offset="70%" style="stop-color:#ffffff"/>
-      <stop offset="100%" style="stop-color:#E8752A"/>
-    </linearGradient>
-  </defs>
-  <circle cx="28" cy="28" r="24" fill="url(#dellRing)"/>
-  <circle cx="28" cy="28" r="20" fill="#0a0e14"/>
-  <text x="28" y="35" text-anchor="middle" fill="#ffffff" font-family="Arial,Helvetica,sans-serif" font-size="26" font-weight="700">D</text>
-  <text x="62" y="36" fill="url(#dellText)" font-family="Arial,Helvetica,sans-serif" font-size="24" font-weight="700" letter-spacing="1">DELL</text>
-  <text x="138" y="36" fill="#E8752A" font-family="Arial,Helvetica,sans-serif" font-size="20" font-weight="600">Technologies</text>
-</svg>