Align sized cluster seeds and GET dumps with PVE wire shapes; restyle DATA panel.

- Scale small/large/big seeds (3×50 / 10×1000 / 20×2000) with proportional
  backups, snapshots, HA, replication, Ceph capacity, and OSD totals
  (10 / 100 / 500) plus matching node disks and crush/pg metadata
- Enrich handler responses for apt, certificates, qemu/lxc status, storage,
  SDN, metrics export, and related cluster/node dumps
- Flatten nested body_example fields into PARAMS and sync the request body
  via dotted paths (oVirt-style)
- Restyle DATA controls as size cards with full-width Reset to minimal /
  Refresh stats; unload reloads the minimal cluster

README.md

@@ -113,9 +113,9 @@ Interactive console with light/dark themes, endpoint catalog for PVE 6–9,
 runtime contract hot-swap, and a UPID task monitor. More detail:
 [Web UI](docs/web-ui.md).
 
-![Web UI light theme](docs/images/web-ui-light.png)
+![Web UI main](docs/images/web-ui-main.png)
 
-![Web UI dark theme](docs/images/web-ui-dark.png)
+![Web UI API catalog](docs/images/web-ui-api-catalog.png)
 
 ## Documentation