feat(hooks): add useSession hook for managing agent sessions

src/renderer/src/hooks/agents/useSession.ts

@@ -0,0 +1,39 @@
+import { UpdateSessionForm } from '@renderer/types'
+import { useCallback } from 'react'
+import { useTranslation } from 'react-i18next'
+import useSWR from 'swr'
+
+import { useAgentClient } from './useAgentClient'
+
+export const useSession = (agentId: string, sessionId: string) => {
+  const { t } = useTranslation()
+  const client = useAgentClient()
+  const key = client.getSessionPaths(agentId).withId(sessionId)
+
+  const fetcher = async () => {
+    const data = await client.getSession(agentId, sessionId)
+    return data
+  }
+  const { data, error, isLoading, mutate } = useSWR(key, fetcher)
+
+  const updateSession = useCallback(
+    async (form: UpdateSessionForm) => {
+      if (!agentId) return
+      try {
+        const result = await client.updateSession(agentId, form)
+        mutate(result)
+      } catch (error) {
+        window.toast.error(t('agent.session.update.error.failed'))
+      }
+    },
+    [agentId, client, mutate, t]
+  )
+
+  return {
+    session: data,
+    messages: data?.messages,
+    error,
+    isLoading,
+    updateSession
+  }
+}