feat: 회의 목록 반응형 그리드 레이아웃 + ellipsis UX 개선

단일 열 리스트 → CSS Grid (1~4열 반응형).
제목/메타 text-overflow: ellipsis, hover translateY 효과,
상태 LED+날짜 상단 배치, d3roTypo 토큰 사용.

src/renderer/pages/MeetingModePage.tsx

@@ -238,42 +238,87 @@ export function MeetingModePage(): React.ReactElement {
         ) : sessions.length === 0 ? (
           <EmptyStateCard message={`${t('meeting.noSessions')}\n${t('meeting.noSessionsDesc')}`} />
         ) : (
-          <Box sx={{ display: 'flex', flexDirection: 'column', gap: 1.5 }}>
+          <Box
+            sx={{
+              display: 'grid',
+              gridTemplateColumns: {
+                xs: '1fr',
+                sm: 'repeat(2, 1fr)',
+                md: 'repeat(3, 1fr)',
+                lg: 'repeat(4, 1fr)',
+              },
+              gap: 1.5,
+            }}
+          >
             {sessions.map((session) => (
               <Box
                 key={session.id}
                 onClick={() => handleViewDetail(session.id)}
-                sx={{ cursor: 'pointer', '&:hover': { opacity: 0.85 } }}
+                sx={{
+                  cursor: 'pointer',
+                  transition: 'transform 0.15s ease, box-shadow 0.15s ease',
+                  '&:hover': { transform: 'translateY(-2px)' },
+                }}
               >
               <MetalCard>
-                <Box sx={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
-                  <Box>
-                    <PhosphorText variant="label">
+                {/* 상태 LED + 날짜 */}
+                <Box sx={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', mb: 1 }}>
+                  <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.75 }}>
+                    <Led color={statusColor(session.status)} size={6} />
+                    <PhosphorText variant="dim" sx={{ fontSize: d3roTypo.meta.size }}>
+                      {session.status === 'completed' ? t('meeting.completed')
+                        : session.status === 'error' ? t('meeting.error')
+                        : session.status === 'processing' ? t('meeting.processing')
+                        : t('meeting.recording')}
+                    </PhosphorText>
+                  </Box>
+                  <PhosphorText variant="dim" sx={{ fontSize: d3roTypo.meta.size }}>
+                    {formatDate(session.startedAt)}
+                  </PhosphorText>
+                </Box>
+
+                {/* 제목 — ellipsis */}
+                <PhosphorText
+                  variant="compact"
+                  sx={{
+                    overflow: 'hidden',
+                    textOverflow: 'ellipsis',
+                    whiteSpace: 'nowrap',
+                    display: 'block',
+                    mb: 0.5,
+                  }}
+                >
                   {session.title ?? t('meeting.untitled')}
                 </PhosphorText>
-                    <PhosphorText variant="dim" sx={{ mt: 0.5 }}>
+
+                {/* 메타 — 소요 시간 · 메모 수 */}
+                <PhosphorText variant="dim" sx={{
+                  fontSize: d3roTypo.meta.size,
+                  overflow: 'hidden',
+                  textOverflow: 'ellipsis',
+                  whiteSpace: 'nowrap',
+                }}>
                   {session.durationMs != null
                     ? t('meeting.duration', { minutes: Math.round(session.durationMs / 60000) })
                     : '—'}
                   {' · '}
                   {t('meeting.memos')}: {session.memoCount}
                 </PhosphorText>
-                  </Box>
-                  <Box sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
-                    <PhosphorText variant="dim">{formatDate(session.startedAt)}</PhosphorText>
-                    <Led color={statusColor(session.status)} size={8} />
-                  </Box>
-                </Box>
 
-                {/* 프로세싱 중인 세션 표시 */}
+                {/* 프로세싱 진행 바 */}
                 {session.status === 'processing' && progress && progress.sessionId === session.id && (
                   <Box sx={{ mt: 1 }}>
                     <LinearProgress
                       variant="determinate"
                       value={progress.percent}
-                      sx={{ height: 4, borderRadius: 2 }}
+                      sx={{
+                        height: 3,
+                        borderRadius: 2,
+                        bgcolor: d3roPalette.bg.inset,
+                        '& .MuiLinearProgress-bar': { bgcolor: d3roPalette.accent.amber },
+                      }}
                     />
-                    <PhosphorText variant="dim" sx={{ mt: 0.5, fontSize: 11 }}>
+                    <PhosphorText variant="dim" sx={{ mt: 0.5, fontSize: d3roTypo.nano.size }}>
                       {t(`meeting.processingStep.${progress.step}` as Parameters<typeof t>[0])}
                     </PhosphorText>
                   </Box>