feat(v029): MoveStatusModal — 사유 입력 + 4 status 버튼 + AI 자동 분류 placeholder

Cut B Task 7 — NoteCard 메뉴가 여는 modal.

- 사유 textarea (선택) + 활성/완료/보관/휴지통 버튼 (옮기기 즉시 setStatus + onMoved)
- 빈 사유 → null reason 전달 (trim 처리)
- AI 자동 분류 버튼 → classifyStatus(stub) 호출 + 추천 표시 + 확정 버튼
- statusLabel helper export (NoteCard 메뉴에서 재사용)
- 4 단위 테스트 (render / 버튼 클릭 / AI 추천 흐름 / 빈 사유 null)

src/renderer/inbox/components/MoveStatusModal.tsx

@@ -0,0 +1,141 @@
+import React, { useState } from 'react';
+import { inboxApi } from '../api.js';
+import type { NoteStatus } from '@shared/types';
+
+interface Props {
+  noteId: string;
+  rawText: string;
+  summary: string;
+  initialTarget: NoteStatus;
+  onClose: () => void;
+  onMoved: (status: NoteStatus, reason: string | null) => void;
+}
+
+/**
+ * v0.2.9 Cut B Task 7 — 메모 이동 Modal.
+ *
+ * 사유 입력 + 4 status 버튼 (활성/완료/보관/휴지통) + AI 자동 분류 placeholder.
+ * AI 분류는 Task 9 에서 정식 구현 — 본 task 는 stub IPC (`ai:classify-status`)
+ * 호출 path 만 working state. 추천 결과는 화면 표시 + 확정 버튼 두 단계.
+ */
+export function MoveStatusModal({
+  noteId,
+  initialTarget: _initialTarget,
+  onClose,
+  onMoved
+}: Props): React.ReactElement {
+  const [reason, setReason] = useState('');
+  const [recommendation, setRecommendation] = useState<{
+    status: NoteStatus;
+    rationale: string;
+  } | null>(null);
+  const [classifying, setClassifying] = useState(false);
+
+  async function move(status: NoteStatus): Promise<void> {
+    const trimmedReason = reason.trim() === '' ? null : reason.trim();
+    await inboxApi.setStatus(noteId, status, trimmedReason);
+    onMoved(status, trimmedReason);
+  }
+
+  async function classify(): Promise<void> {
+    setClassifying(true);
+    setRecommendation(null);
+    try {
+      const r = await inboxApi.classifyStatus(noteId, reason);
+      setRecommendation({ status: r.recommended, rationale: r.rationale });
+    } finally {
+      setClassifying(false);
+    }
+  }
+
+  return (
+    <div
+      role="dialog"
+      aria-label="이동"
+      style={{
+        position: 'fixed',
+        top: 0,
+        left: 0,
+        right: 0,
+        bottom: 0,
+        background: 'rgba(0,0,0,0.4)',
+        display: 'flex',
+        alignItems: 'center',
+        justifyContent: 'center',
+        zIndex: 100
+      }}
+    >
+      <div
+        style={{
+          background: '#fff',
+          padding: 16,
+          borderRadius: 8,
+          minWidth: 400,
+          maxWidth: 520
+        }}
+      >
+        <h2 style={{ fontSize: 16, margin: '0 0 12px' }}>메모 이동</h2>
+        <textarea
+          value={reason}
+          onChange={(e) => setReason(e.target.value)}
+          placeholder="이동 사유 (선택사항)"
+          rows={2}
+          style={{ width: '100%', padding: 6, fontSize: 13, boxSizing: 'border-box' }}
+        />
+        <div
+          style={{
+            display: 'flex',
+            gap: 8,
+            marginTop: 8,
+            flexWrap: 'wrap',
+            alignItems: 'center'
+          }}
+        >
+          <button onClick={() => void classify()} disabled={classifying}>
+            {classifying ? '분류 중...' : 'AI 자동 분류'}
+          </button>
+          <button onClick={() => void move('completed')}>완료</button>
+          <button onClick={() => void move('archived')}>보관</button>
+          <button onClick={() => void move('trashed')}>휴지통</button>
+          <button onClick={onClose} style={{ marginLeft: 'auto' }}>
+            취소
+          </button>
+        </div>
+        {recommendation !== null && (
+          <div
+            style={{
+              marginTop: 12,
+              padding: 8,
+              background: '#f0f8ff',
+              borderRadius: 4,
+              fontSize: 12
+            }}
+          >
+            <div>
+              AI 추천: <strong>{statusLabel(recommendation.status)}</strong>
+            </div>
+            <div style={{ marginTop: 4 }}>이유: {recommendation.rationale}</div>
+            <div style={{ marginTop: 8 }}>
+              <button onClick={() => void move(recommendation.status)}>
+                확정 ({statusLabel(recommendation.status)})
+              </button>
+            </div>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}
+
+export function statusLabel(s: NoteStatus): string {
+  switch (s) {
+    case 'active':
+      return '활성';
+    case 'completed':
+      return '완료';
+    case 'archived':
+      return '보관';
+    case 'trashed':
+      return '휴지통';
+  }
+}