feat(家庭成员): 添加家庭成员模型并关联感悟和计划

添加家庭成员模型(FamilyMember)并关联到感悟记录(InsightRecord)和今日计划(TodayPlan)
修改相关表单、视图和模板以支持发言人功能
添加数据库迁移文件和初始化脚本
更新报告模板显示发言人信息

core/forms.py

@@ -6,7 +6,8 @@ from .models import (
     InsightRecord,
     FamilyTask,
     TodayPlan,
-    SystemConfig
+    SystemConfig,
+    FamilyMember
 )
 
 class ReadingRecordForm(forms.ModelForm):
@@ -27,8 +28,9 @@ class InsightRecordForm(forms.ModelForm):
     """感悟记录表单"""
     class Meta:
         model = InsightRecord
-        fields = ['content', 'file']
+        fields = ['speaker', 'content', 'file']
         widgets = {
+            'speaker': forms.Select(attrs={'class': 'form-select'}),
             'content': forms.Textarea(attrs={'class': 'form-control', 'rows': 5, 'placeholder': '请输入感悟'}),
             'file': forms.FileInput(attrs={'class': 'form-control'}),
         }
@@ -50,9 +52,10 @@ class TodayPlanForm(forms.ModelForm):
     """今日计划表单"""
     class Meta:
         model = TodayPlan
-        fields = ['date', 'content', 'priority', 'type', 'status']
+        fields = ['date', 'speaker', 'content', 'priority', 'type', 'status']
         widgets = {
             'date': forms.DateInput(attrs={'type': 'date', 'class': 'form-control'}),
+            'speaker': forms.Select(attrs={'class': 'form-select'}),
             'content': forms.Textarea(attrs={'class': 'form-control', 'rows': 3, 'placeholder': '请输入计划内容'}),
             'priority': forms.Select(attrs={'class': 'form-select'}),
             'type': forms.Select(attrs={'class': 'form-select'}),