セッションが見つからない場合に info メッセージを表示

src/__tests__/sessionSelector.test.ts

@@ -19,10 +19,17 @@ vi.mock('../shared/prompt/index.js', () => ({
   selectOption: (...args: [string, unknown[]]) => mockSelectOption(...args),
 }));
 
+const mockInfo = vi.fn<(message: string) => void>();
+
+vi.mock('../shared/ui/index.js', () => ({
+  info: (...args: [string]) => mockInfo(...args),
+}));
+
 vi.mock('../shared/i18n/index.js', () => ({
   getLabel: (key: string, _lang: string, params?: Record<string, string>) => {
     if (key === 'interactive.sessionSelector.newSession') return 'New session';
     if (key === 'interactive.sessionSelector.newSessionDescription') return 'Start a new conversation';
+    if (key === 'interactive.sessionSelector.noSessions') return 'No sessions found';
     if (key === 'interactive.sessionSelector.messages') return `${params?.count} messages`;
     if (key === 'interactive.sessionSelector.lastResponse') return `Last: ${params?.response}`;
     if (key === 'interactive.sessionSelector.prompt') return 'Select a session';
@@ -44,6 +51,7 @@ describe('selectRecentSession', () => {
 
     expect(result).toBeNull();
     expect(mockSelectOption).not.toHaveBeenCalled();
+    expect(mockInfo).toHaveBeenCalledWith('No sessions found');
   });
 
   it('should return null when user selects __new__', async () => {

src/features/interactive/sessionSelector.ts

@@ -8,6 +8,7 @@
 import { loadSessionIndex, extractLastAssistantResponse } from '../../infra/claude/session-reader.js';
 import { selectOption, type SelectOptionItem } from '../../shared/prompt/index.js';
 import { getLabel } from '../../shared/i18n/index.js';
+import { info } from '../../shared/ui/index.js';
 
 /** Maximum number of sessions to display */
 const MAX_DISPLAY_SESSIONS = 10;
@@ -53,6 +54,7 @@ export async function selectRecentSession(
   const sessions = loadSessionIndex(cwd);
 
   if (sessions.length === 0) {
+    info(getLabel('interactive.sessionSelector.noSessions', lang));
     return null;
   }
 

src/shared/i18n/labels_en.yaml

@@ -40,6 +40,7 @@ interactive:
     prompt: "Resume from a recent session?"
     newSession: "New session"
     newSessionDescription: "Start a fresh conversation"
+    noSessions: "No resumable sessions were found. Starting a new session."
     lastResponse: "Last: {response}"
     messages: "{count} messages"
   previousTask:

src/shared/i18n/labels_ja.yaml

@@ -40,6 +40,7 @@ interactive:
     prompt: "直近のセッションを引き継ぎますか？"
     newSession: "新しいセッション"
     newSessionDescription: "新しい会話を始める"
+    noSessions: "引き継げるセッションが見つかりませんでした。新しいセッションで開始します。"
     lastResponse: "最後: {response}"
     messages: "{count}メッセージ"
   previousTask: