feat: 添加日记（成才之路）功能

- 前端 MemoryModal 添加标签切换（成才之路/工作记忆）
- Dashboard 按钮更名为'日新'（📖）
- 后端添加日记 API：
  * /api/lobsters/<id>/diary/dates/ - 获取日记日期
  * /api/lobsters/<id>/diary/<date>/ - 获取日记内容
- 日记优先显示故事版，其次技术版
- 日历显示本月日记统计
- 优化 UI 样式和加载状态

📖 苟日新，日日新，又日新

code/backend/api/urls.py

@@ -10,5 +10,7 @@ urlpatterns = [
     path('lobsters/<int:lobster_id>/memory/', views.lobster_memory, name='lobster-memory'),
     path('lobsters/<int:lobster_id>/memory/dates/', views.lobster_memory_dates, name='lobster-memory-dates'),
     path('lobsters/<int:lobster_id>/memory/<str:date>/', views.lobster_memory_detail, name='lobster-memory-detail'),
+    path('lobsters/<int:lobster_id>/diary/dates/', views.lobster_diary_dates, name='lobster-diary-dates'),
+    path('lobsters/<int:lobster_id>/diary/<str:date>/', views.lobster_diary_detail, name='lobster-diary-detail'),
     path('tools/', views.tools_list, name='tools-list'),
 ]

code/backend/api/views.py

@@ -113,3 +113,41 @@ def lobster_memory_detail(request, lobster_id, date):
         'date': date,
         'content': content
     })
+
+@api_view(['GET'])
+def lobster_diary_dates(request, lobster_id):
+    """获取龙虾有日记（成才之路）的日期列表"""
+    # 日记文件目录
+    diary_dir = Path(f'/home/node/.openclaw/workspace/flying-hero/memory/成才之路')
+    
+    # 获取所有日记文件
+    dates = []
+    if diary_dir.exists():
+        for file in diary_dir.glob('*.md'):
+            # 提取日期 (YYYY-MM-DD.md 或 YYYY-MM-DD-*.md)
+            match = re.match(r'(\d{4}-\d{2}-\d{2})(?:-.*)?\.md', file.name)
+            if match:
+                dates.append(match.group(1))
+    
+    dates = list(set(dates))  # 去重
+    dates.sort(reverse=True)
+    return Response({'dates': dates})
+
+@api_view(['GET'])
+def lobster_diary_detail(request, lobster_id, date):
+    """获取指定日期的日记内容（成才之路）"""
+    # 优先查找故事版，其次技术版，再其次普通版
+    diary_file = Path(f'/home/node/.openclaw/workspace/flying-hero/memory/成才之路/{date}-故事版.md')
+    if not diary_file.exists():
+        diary_file = Path(f'/home/node/.openclaw/workspace/flying-hero/memory/成才之路/{date}-技术版.md')
+    if not diary_file.exists():
+        diary_file = Path(f'/home/node/.openclaw/workspace/flying-hero/memory/成才之路/{date}.md')
+    
+    if not diary_file.exists():
+        return Response({'error': '该日期没有日记'}, status=404)
+    
+    content = diary_file.read_text(encoding='utf-8')
+    return Response({
+        'date': date,
+        'content': content
+    })