feat: add realtime visitor tracking page and session journey view

lib/api/realtime.ts

@@ -0,0 +1,42 @@
+import apiRequest from './client'
+
+export interface Visitor {
+  session_id: string
+  first_seen: string
+  last_seen: string
+  pageviews: number
+  current_path: string
+  browser: string
+  os: string
+  device_type: string
+  country: string
+  city: string
+}
+
+export interface SessionEvent {
+  id: string
+  site_id: string
+  session_id: string
+  path: string
+  referrer: string | null
+  user_agent: string
+  country: string | null
+  city: string | null
+  region: string | null
+  device_type: string
+  screen_resolution: string | null
+  browser: string | null
+  os: string | null
+  timestamp: string
+  created_at: string
+}
+
+export async function getRealtimeVisitors(siteId: string): Promise<Visitor[]> {
+  const data = await apiRequest<{ visitors: Visitor[] }>(`/sites/${siteId}/realtime/visitors`)
+  return data.visitors
+}
+
+export async function getSessionDetails(siteId: string, sessionId: string): Promise<SessionEvent[]> {
+  const data = await apiRequest<{ events: SessionEvent[] }>(`/sites/${siteId}/sessions/${sessionId}`)
+  return data.events
+}