refactor(agent-modal): move AgentModal component to agent subdirectory

Restructure the component organization by moving AgentModal.tsx into a dedicated agent subdirectory under Popups. This improves maintainability by grouping related agent components together.

Update all import paths to reflect the new location. The component functionality remains unchanged.

src/renderer/src/components/Popups/agent/AgentModal.tsx

@@ -24,7 +24,7 @@ import { AddAgentForm, AgentEntity, AgentType, BaseAgentForm, isAgentType, Updat
 import { ChangeEvent, FormEvent, ReactNode, useCallback, useEffect, useMemo, useRef, useState } from 'react'
 import { useTranslation } from 'react-i18next'
 
-import { ErrorBoundary } from '../ErrorBoundary'
+import { ErrorBoundary } from '../../ErrorBoundary'
 
 const logger = loggerService.withContext('AddAgentPopup')
 

src/renderer/src/pages/home/Tabs/AgentsTab.tsx

@@ -1,5 +1,5 @@
 import { Button, Spinner } from '@heroui/react'
-import { AgentModal } from '@renderer/components/Popups/AgentModal'
+import { AgentModal } from '@renderer/components/Popups/agent/AgentModal'
 import { useAgents } from '@renderer/hooks/agents/useAgents'
 import { useRuntime } from '@renderer/hooks/useRuntime'
 import { useAppDispatch } from '@renderer/store'

src/renderer/src/pages/home/Tabs/components/AgentItem.tsx

@@ -1,6 +1,6 @@
 import { Avatar, Button, cn, useDisclosure } from '@heroui/react'
 import { DeleteIcon, EditIcon } from '@renderer/components/Icons'
-import { AgentModal } from '@renderer/components/Popups/AgentModal'
+import { AgentModal } from '@renderer/components/Popups/agent/AgentModal'
 import { getAgentAvatar } from '@renderer/config/agent'
 import { AgentEntity } from '@renderer/types'
 import { ContextMenu, ContextMenuContent, ContextMenuItem, ContextMenuTrigger } from '@renderer/ui/context-menu'