feat(ui): sweep remaining components for Deep Space consistency

Replace old design tokens and hardcoded colors across 29 files:
- bg-primary/text-primary-foreground -> bg-accent/text-white
- text-muted-foreground -> text-text-muted
- text-destructive/bg-destructive -> text-error/bg-error
- bg-muted -> bg-elevated (background usage)
- Hardcoded green/red/yellow/emerald/amber/slate -> semantic tokens
- Remove shadow-md/lg from cards, tooltips, topology nodes
- rounded-xl -> rounded-lg on cards/panels
- focus:ring-1 focus:ring-ring -> focus:border-accent on inputs

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/components/network/TopologyMap.tsx

@@ -99,8 +99,8 @@ function DeviceNode({ data }: NodeProps<DeviceNodeData>) {
   return (
     <div
       className={cn(
-        'rounded-lg border bg-surface shadow-md px-3 py-2 min-w-[180px]',
-        'transition-shadow hover:shadow-lg',
+        'rounded-lg border bg-surface px-3 py-2 min-w-[180px]',
+        'transition-colors',
         isOnline ? 'border-border' : 'border-error/30',
       )}
     >
@@ -152,7 +152,7 @@ interface TooltipData {
 function NodeTooltip({ data }: { data: TooltipData; onClose?: () => void }) {
   return (
     <div
-      className="absolute z-50 rounded-lg border border-border bg-elevated shadow-lg px-3 py-2 text-xs pointer-events-none"
+      className="absolute z-50 rounded-lg border border-border bg-elevated px-3 py-2 text-xs pointer-events-none"
       style={{ left: data.x + 10, top: data.y - 10 }}
     >
       <div className="font-medium text-text-primary">{data.hostname}</div>
@@ -339,7 +339,7 @@ export function TopologyMap({ tenantId }: TopologyMapProps) {
       >
         <Background color="hsl(var(--muted))" gap={20} size={1} />
         <Controls
-          className="!bg-surface !border-border !shadow-md [&>button]:!bg-surface [&>button]:!border-border [&>button]:!text-text-secondary [&>button:hover]:!bg-elevated"
+          className="!bg-surface !border-border [&>button]:!bg-surface [&>button]:!border-border [&>button]:!text-text-secondary [&>button:hover]:!bg-elevated"
         />
         <MiniMap
           nodeColor={(node) => {