feat: 完善周期报告与用户行为分析

- 支持可配置周报月报模板与登录后异步补生成\n- 增加用户行为埋点和后台分析页面\n- 移除主题额度并保留实修回顾结算\n- 修复历史会话续聊上下文丢失

ai_knowledge_base_v2/apps/backend/app/schemas/admin.py

@@ -110,12 +110,10 @@ class EntitlementPlanSaveRequest(BaseModel):
     planType: Literal["basic", "deep", "addon"] = "basic"
     description: str | None = Field(default=None, max_length=255)
     validityDays: int | None = Field(default=None, ge=1, le=3650)
-    monthlyTopicLimit: int | None = Field(default=None, ge=0, le=100000)
     enableGrowthProfile: int = Field(default=0, ge=0, le=1)
     enablePeriodicReports: int = Field(default=0, ge=0, le=1)
     allowHelpCard: int = Field(default=1, ge=0, le=1)
     allowShareDraft: int = Field(default=1, ge=0, le=1)
-    deductQuota: int = Field(default=1, ge=0, le=1)
     status: int = Field(default=1, ge=0, le=1)
     sortOrder: int = Field(default=0, ge=0, le=100000)
 
@@ -166,7 +164,7 @@ class ContentGenerationConfigSaveRequest(BaseModel):
 
 
 class ContentGenerationPreviewRequest(BaseModel):
-    configType: Literal["help_card", "share_draft"]
+    configType: Literal["help_card", "share_draft", "weekly_report", "monthly_report"]
     templateContent: str = Field(min_length=1, max_length=20000)
     variables: list[ContentGenerationVariableRequest] = Field(min_length=1, max_length=30)