项目总览界面UI美化与入组数据统计修复

- 重构总览页面布局：卡片化设计、顶部标题栏、图标装饰
- 美化进度时间线：hover高亮、呼吸动画、渐变连接线
- 重写入组图表：去除边框、虚线网格、渐变柱子、柔和背景
- 修复入组统计：同时匹配enrollment_date和ENROLLED状态
- 移除adapter中hasEnrollmentStage过滤，显示真实入组数

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

backend/app/crud/overview.py

@@ -3,7 +3,7 @@ import uuid
 from datetime import datetime
 from typing import Dict, List, Tuple
 
-from sqlalchemy import func, select, and_
+from sqlalchemy import Date, cast, func, select, and_, or_
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.models.site import Site
@@ -86,20 +86,18 @@ async def get_project_overview(db: AsyncSession, study_id: uuid.UUID) -> Dict:
             startup_status = "NOT_STARTED"
         startup_completed = kickoff.get("kickoff_date") if contract_status == "COMPLETED" else None
         
-        # 入组状态 - 依赖启动会完成
+        # 入组状态
         enrollment = enrollment_data.get(site_id_str, {"actual": 0})
         enrollment_actual = enrollment["actual"]
         enrollment_target = site.enrollment_target or 0
-        
-        if startup_status == "COMPLETED":
-            if enrollment_actual >= enrollment_target and enrollment_target > 0:
-                enrollment_status = "COMPLETED"
-            elif enrollment_actual > 0:
-                enrollment_status = "IN_PROGRESS"
-            else:
-                enrollment_status = "NOT_STARTED"
+
+        if enrollment_actual >= enrollment_target and enrollment_target > 0:
+            enrollment_status = "COMPLETED"
+        elif enrollment_actual > 0:
+            enrollment_status = "IN_PROGRESS"
+        elif startup_status == "COMPLETED":
+            enrollment_status = "NOT_STARTED"
         else:
-            # 启动会未完成,入组强制为未开始
             enrollment_status = "NOT_STARTED"
         
         # 检查状态 - 依赖入组完成
@@ -265,35 +263,44 @@ async def _get_enrollment_data(db: AsyncSession, study_id: uuid.UUID, site_ids:
         and_(
             Subject.study_id == study_id,
             Subject.site_id.in_(site_ids),
-            Subject.enrollment_date.isnot(None)
+            or_(
+                Subject.enrollment_date.isnot(None),
+                Subject.status == "ENROLLED"
+            )
         )
     ).group_by(Subject.site_id)
-    
+
     result = await db.execute(stmt)
     rows = result.all()
-    
+
     data = {}
     for row in rows:
         data[str(row.site_id)] = {"actual": row.count}
-    
+
     return data
 
 
 async def _get_monthly_enrollment(db: AsyncSession, study_id: uuid.UUID) -> List[Dict]:
     """获取月度入组统计"""
-    month_col = func.to_char(Subject.enrollment_date, 'YYYY-MM').label("month")
-    
+    month_col = func.to_char(
+        func.coalesce(Subject.enrollment_date, func.cast(Subject.created_at, Date)),
+        'YYYY-MM'
+    ).label("month")
+
     stmt = select(
         month_col,
         func.count(Subject.id).label("count")
     ).where(
         and_(
             Subject.study_id == study_id,
-            Subject.enrollment_date.isnot(None)
+            or_(
+                Subject.enrollment_date.isnot(None),
+                Subject.status == "ENROLLED"
+            )
         )
     ).group_by(month_col).order_by(month_col)
-    
+
     result = await db.execute(stmt)
     rows = result.all()
-    
+
     return [{"month": row.month, "count": row.count} for row in rows]