feat(ui): add NetworkProbeRecord and NetworkProbeStatsRecord types

Add TypeScript interfaces for the network probes feature API responses.

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

internal/site/src/types.d.ts

@@ -545,3 +545,18 @@ export interface UpdateInfo {
 	v: string // new version
 	url: string // url to new version
 }
+
+export interface NetworkProbeRecord {
+	id: string
+	name: string
+	target: string
+	protocol: "icmp" | "tcp" | "http"
+	port: number
+	interval: number
+	enabled: boolean
+}
+
+export interface NetworkProbeStatsRecord {
+	stats: Record<string, { avg: number; min: number; max: number; loss: number }>
+	created: number // unix timestamp (ms) for Recharts xAxis
+}