fix: auto-fix code issues (cron)

- 修复重复导入/字段
- 修复异常处理
- 修复PEP8格式问题
- 添加类型注解

backend/growth_manager.py

@@ -28,6 +28,7 @@ import httpx
 # Database path
 DB_PATH = os.path.join(os.path.dirname(__file__), "insightflow.db")
 
+
 class EventType(StrEnum):
     """事件类型"""
 
@@ -43,6 +44,7 @@ class EventType(StrEnum):
     INVITE_ACCEPTED = "invite_accepted"  # 接受邀请
     REFERRAL_REWARD = "referral_reward"  # 推荐奖励
 
+
 class ExperimentStatus(StrEnum):
     """实验状态"""
 
@@ -52,6 +54,7 @@ class ExperimentStatus(StrEnum):
     COMPLETED = "completed"  # 已完成
     ARCHIVED = "archived"  # 已归档
 
+
 class TrafficAllocationType(StrEnum):
     """流量分配类型"""
 
@@ -59,6 +62,7 @@ class TrafficAllocationType(StrEnum):
     STRATIFIED = "stratified"  # 分层分配
     TARGETED = "targeted"  # 定向分配
 
+
 class EmailTemplateType(StrEnum):
     """邮件模板类型"""
 
@@ -70,6 +74,7 @@ class EmailTemplateType(StrEnum):
     REFERRAL = "referral"  # 推荐邀请
     NEWSLETTER = "newsletter"  # 新闻通讯
 
+
 class EmailStatus(StrEnum):
     """邮件状态"""
 
@@ -83,6 +88,7 @@ class EmailStatus(StrEnum):
     BOUNCED = "bounced"  # 退信
     FAILED = "failed"  # 失败
 
+
 class WorkflowTriggerType(StrEnum):
     """工作流触发类型"""
 
@@ -94,6 +100,7 @@ class WorkflowTriggerType(StrEnum):
     MILESTONE = "milestone"  # 里程碑
     CUSTOM_EVENT = "custom_event"  # 自定义事件
 
+
 class ReferralStatus(StrEnum):
     """推荐状态"""
 
@@ -102,6 +109,7 @@ class ReferralStatus(StrEnum):
     REWARDED = "rewarded"  # 已奖励
     EXPIRED = "expired"  # 已过期
 
+
 @dataclass
 class AnalyticsEvent:
     """分析事件"""
@@ -120,6 +128,7 @@ class AnalyticsEvent:
     utm_medium: str | None
     utm_campaign: str | None
 
+
 @dataclass
 class UserProfile:
     """用户画像"""
@@ -139,6 +148,7 @@ class UserProfile:
     created_at: datetime
     updated_at: datetime
 
+
 @dataclass
 class Funnel:
     """转化漏斗"""
@@ -151,6 +161,7 @@ class Funnel:
     created_at: datetime
     updated_at: datetime
 
+
 @dataclass
 class FunnelAnalysis:
     """漏斗分析结果"""
@@ -163,6 +174,7 @@ class FunnelAnalysis:
     overall_conversion: float  # 总体转化率
     drop_off_points: list[dict]  # 流失点
 
+
 @dataclass
 class Experiment:
     """A/B 测试实验"""
@@ -187,6 +199,7 @@ class Experiment:
     updated_at: datetime
     created_by: str
 
+
 @dataclass
 class ExperimentResult:
     """实验结果"""
@@ -204,6 +217,7 @@ class ExperimentResult:
     uplift: float  # 提升幅度
     created_at: datetime
 
+
 @dataclass
 class EmailTemplate:
     """邮件模板"""
@@ -224,6 +238,7 @@ class EmailTemplate:
     created_at: datetime
     updated_at: datetime
 
+
 @dataclass
 class EmailCampaign:
     """邮件营销活动"""
@@ -245,6 +260,7 @@ class EmailCampaign:
     completed_at: datetime | None
     created_at: datetime
 
+
 @dataclass
 class EmailLog:
     """邮件发送记录"""
@@ -266,6 +282,7 @@ class EmailLog:
     error_message: str | None
     created_at: datetime
 
+
 @dataclass
 class AutomationWorkflow:
     """自动化工作流"""
@@ -282,6 +299,7 @@ class AutomationWorkflow:
     created_at: datetime
     updated_at: datetime
 
+
 @dataclass
 class ReferralProgram:
     """推荐计划"""
@@ -301,6 +319,7 @@ class ReferralProgram:
     created_at: datetime
     updated_at: datetime
 
+
 @dataclass
 class Referral:
     """推荐记录"""
@@ -321,6 +340,7 @@ class Referral:
     expires_at: datetime
     created_at: datetime
 
+
 @dataclass
 class TeamIncentive:
     """团队升级激励"""
@@ -338,6 +358,7 @@ class TeamIncentive:
     is_active: bool
     created_at: datetime
 
+
 class GrowthManager:
     """运营与增长管理主类"""
 
@@ -2126,9 +2147,11 @@ class GrowthManager:
             created_at=row["created_at"],
         )
 
+
 # Singleton instance
 _growth_manager = None
 
+
 def get_growth_manager() -> GrowthManager:
     global _growth_manager
     if _growth_manager is None: