fix: topology — all servers dual-homed 10G+1G, show mgmt band

All rack servers (and large1 on table) have both a 10G link to USW-Agg
and a 1G management link to Pro 24 PoE. Update topology:
- Move all 6 hosts into single row (including large1)
- Update sublabels to "10G+1G" for all nodes
- large1 dashed-border (off-rack) with "table · 10G+1G"
- Add dashed amber "1G mgmt (PoE)" horizontal band above hosts
  to represent the PoE switch management connections
- 10G primary fan-out lines still drop from Agg switch above
- large1 primary line rendered as dashed green (off-rack run)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

static/style.css

@@ -416,6 +416,37 @@ a:hover { text-decoration: underline; text-shadow: var(--glow-amber); }
   border-style: dashed;
 }
 
+/* Dashed 10G line (for off-rack/table host) */
+.topo-line-dashed {
+  background: none;
+  border-left: 1px dashed var(--green);
+  opacity: .4;
+}
+
+/* 1G management band — horizontal amber dashed line with label */
+.topo-mgmt-band {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  padding: 0 8px;
+  height: 16px;
+}
+
+.topo-mgmt-label {
+  font-size: .52em;
+  color: var(--amber);
+  opacity: .65;
+  white-space: nowrap;
+  letter-spacing: .04em;
+}
+
+.topo-mgmt-line {
+  flex: 1;
+  height: 1px;
+  border-top: 1px dashed var(--amber);
+  opacity: .4;
+}
+
 /* ── Host cards ───────────────────────────────────────────────────── */
 .host-grid {
   display: grid;