fix: move AnimMode type to module scope, fix tsc -b build error

frontend/src/components/modals/EdgeModal.tsx

@@ -10,6 +10,14 @@ import { EDGE_DEFAULT_COLORS } from '@/utils/edgeColors'
 
 const EDGE_TYPES = Object.entries(EDGE_TYPE_LABELS) as [EdgeType, string][]
 
+type AnimMode = 'none' | 'snake' | 'flow'
+
+function toAnimMode(v: EdgeData['animated']): AnimMode {
+  if (v === true || v === 'snake') return 'snake'
+  if (v === 'flow') return 'flow'
+  return 'none'
+}
+
 interface EdgeModalProps {
   open: boolean
   onClose: () => void
@@ -25,7 +33,7 @@ export function EdgeModal({ open, onClose, onSubmit, onDelete, initial, title =
   const [vlanId, setVlanId] = useState(initial?.vlan_id?.toString() ?? '')
   const [customColor, setCustomColor] = useState<string | undefined>(initial?.custom_color)
   const [pathStyle, setPathStyle] = useState<EdgePathStyle>(initial?.path_style ?? 'bezier')
-  const [animated, setAnimated] = useState(initial?.animated ?? false)
+  const [animation, setAnimation] = useState<AnimMode>(() => toAnimMode(initial?.animated))
 
   const effectiveColor = customColor ?? EDGE_DEFAULT_COLORS[type]
 
@@ -37,7 +45,7 @@ export function EdgeModal({ open, onClose, onSubmit, onDelete, initial, title =
       vlan_id: type === 'vlan' && vlanId ? parseInt(vlanId) : undefined,
       custom_color: customColor,
       path_style: pathStyle,
-      animated: animated || undefined,
+      animated: animation !== 'none' ? animation : undefined,
     })
     onClose()
   }
@@ -115,20 +123,25 @@ export function EdgeModal({ open, onClose, onSubmit, onDelete, initial, title =
             </div>
           </div>
 
-          <div className="flex items-center justify-between">
-            <Label className="text-xs text-muted-foreground">Flow Animation</Label>
-            <button
-              type="button"
-              onClick={() => setAnimated((a) => !a)}
-              className="relative w-9 h-5 rounded-full transition-colors focus:outline-none shrink-0"
-              style={{ background: animated ? '#00d4ff' : '#30363d' }}
-              aria-pressed={animated}
-            >
-              <span
-                className="absolute top-0.5 left-0.5 w-4 h-4 rounded-full bg-white shadow transition-transform"
-                style={{ transform: animated ? 'translateX(16px)' : 'translateX(0)' }}
-              />
-            </button>
+          <div className="flex flex-col gap-1.5">
+            <Label className="text-xs text-muted-foreground">Animation</Label>
+            <div className="flex rounded-md overflow-hidden border border-[#30363d]">
+              {(['none', 'snake', 'flow'] as AnimMode[]).map((mode, i) => (
+                <button
+                  key={mode}
+                  type="button"
+                  onClick={() => setAnimation(mode)}
+                  className="flex-1 py-1 text-xs capitalize transition-colors"
+                  style={{
+                    background: animation === mode ? '#00d4ff22' : '#21262d',
+                    color: animation === mode ? '#00d4ff' : '#8b949e',
+                    borderRight: i < 2 ? '1px solid #30363d' : undefined,
+                  }}
+                >
+                  {mode === 'none' ? 'None' : mode === 'snake' ? 'Snake' : 'Flow'}
+                </button>
+              ))}
+            </div>
           </div>
 
           <div className="flex flex-col gap-1.5">