Phase 4 구현: Ollama LLM 연동 (다듬기, 번역, 스트리밍)

- LocalLLMService: Ollama REST API, 스트리밍 NDJSON 파싱, 5초 가용성 폴링
- 시스템 프롬프트: refine/translate/summarize/grammar/expand/custom 6개 액션
- VoiceModeService: 전사→LLM 후처리→텍스트 삽입, LLM 실패 시 원본 폴백
- LLM IPC 핸들러: status/models/process/cancel/serverUrl 8개
- StatusBar: Ollama 연결 상태 + 활성 모델 표시
- Preload: llm API 섹션 추가
- Bootstrap: llm-polling 초기화 단계 추가

src/renderer/components/AppLayout.tsx

@@ -18,6 +18,7 @@ import MenuBookIcon from '@mui/icons-material/MenuBook'
 import SettingsIcon from '@mui/icons-material/Settings'
 import { DashboardPage } from '../pages/DashboardPage'
 import { SettingsModal } from './SettingsModal'
+import { StatusBar } from './StatusBar'
 
 type Route = 'dashboard' | 'history' | 'dictionary'
 
@@ -34,7 +35,8 @@ export function AppLayout(): React.ReactElement {
   const [settingsOpen, setSettingsOpen] = useState(false)
 
   return (
-    <Box sx={{ display: 'flex', height: '100vh' }}>
+    <Box sx={{ display: 'flex', height: '100vh', flexDirection: 'column' }}>
+    <Box sx={{ display: 'flex', flex: 1, overflow: 'hidden' }}>
       {/* Sidebar Drawer */}
       <Drawer
         variant="permanent"
@@ -107,7 +109,8 @@ export function AppLayout(): React.ReactElement {
           </Typography>
         )}
       </Box>
-
+    </Box>
+      <StatusBar />
       <SettingsModal open={settingsOpen} onClose={() => setSettingsOpen(false)} />
     </Box>
   )

src/renderer/components/StatusBar.tsx

@@ -0,0 +1,69 @@
+// src/renderer/components/StatusBar.tsx
+// 하단 상태 표시: Ollama 연결 상태
+
+import { useState, useEffect } from 'react'
+import { Box, Chip } from '@mui/material'
+import CircleIcon from '@mui/icons-material/Circle'
+import type { LLMStatus } from '@shared/types'
+
+export function StatusBar(): React.ReactElement {
+  const [llmStatus, setLlmStatus] = useState<LLMStatus | null>(null)
+
+  useEffect(() => {
+    // 초기 상태 조회
+    window.electronAPI.llm.getStatus().then((result) => {
+      if (result.success) setLlmStatus(result.data)
+    })
+
+    // 상태 변경 구독
+    const unsub = window.electronAPI.llm.onStatusChanged((event) => {
+      setLlmStatus(event.status)
+    })
+
+    // 5초마다 폴링 (main에서 이벤트를 보내지 않을 수 있으므로)
+    const interval = setInterval(() => {
+      window.electronAPI.llm.getStatus().then((result) => {
+        if (result.success) setLlmStatus(result.data)
+      })
+    }, 5000)
+
+    return () => {
+      unsub()
+      clearInterval(interval)
+    }
+  }, [])
+
+  const connected = llmStatus?.connectionState === 'connected'
+
+  return (
+    <Box
+      sx={{
+        display: 'flex',
+        alignItems: 'center',
+        gap: 1,
+        px: 2,
+        py: 0.5,
+        borderTop: 1,
+        borderColor: 'divider',
+        bgcolor: 'background.paper'
+      }}
+    >
+      <Chip
+        icon={<CircleIcon sx={{ fontSize: 8 }} />}
+        label={connected ? 'Ollama Connected' : 'Ollama Offline'}
+        size="small"
+        variant="outlined"
+        color={connected ? 'success' : 'default'}
+        sx={{ height: 22, '& .MuiChip-label': { fontSize: 11 } }}
+      />
+      {llmStatus?.activeModel && (
+        <Chip
+          label={llmStatus.activeModel}
+          size="small"
+          variant="outlined"
+          sx={{ height: 22, '& .MuiChip-label': { fontSize: 11 } }}
+        />
+      )}
+    </Box>
+  )
+}