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

tests/unit/test_ceph_handlers.py

@@ -125,7 +125,7 @@ async def test_ceph_pool_and_osd_mutations_persist() -> None:
 
     await create_pool(http, {"values": {"node": "pve1", "name": "vms"}, "provided": frozenset()})
     pools = await list_pool(http, {"values": {"node": "pve1"}, "provided": frozenset()})
-    assert any(item["pool"] == "vms" for item in pools)
+    assert any(item.get("pool_name") == "vms" for item in pools)
     assert "vms" in pool.cluster_metadata["ceph"]["pools"]
 
     await create_osd(http, {"values": {"node": "pve1", "dev": "/dev/sdb"}, "provided": frozenset()})