feat: 新增告警、成本、配额、微信模块及缓存服务
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- 新增告警模块 (alerts): 告警规则配置与触发 - 新增成本管理模块 (cost): 成本统计与分析 - 新增配额模块 (quota): 配额管理与限制 - 新增微信模块 (wechat): 微信相关功能接口 - 新增缓存服务 (cache): Redis 缓存封装 - 新增请求日志中间件 (request_logger) - 新增异常处理和链路追踪中间件 - 更新 dashboard 前端展示 - 更新 SDK stats_client 功能
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backend/app/models/pricing.py
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70
backend/app/models/pricing.py
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"""费用计算相关模型"""
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from datetime import datetime
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from decimal import Decimal
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from sqlalchemy import Column, Integer, String, Text, DECIMAL, SmallInteger, JSON, TIMESTAMP
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from ..database import Base
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class ModelPricing(Base):
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"""模型价格配置表"""
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__tablename__ = "platform_model_pricing"
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id = Column(Integer, primary_key=True, autoincrement=True)
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# 模型标识
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model_name = Column(String(100), nullable=False, unique=True) # 模型名称,如 gpt-4, claude-3-opus
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provider = Column(String(50)) # 提供商,如 openai, anthropic, 4sapi
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display_name = Column(String(100)) # 显示名称
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# 价格配置(单位:元/1K tokens)
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input_price_per_1k = Column(DECIMAL(10, 6), default=0) # 输入价格
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output_price_per_1k = Column(DECIMAL(10, 6), default=0) # 输出价格
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# 或固定价格(每次调用)
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fixed_price_per_call = Column(DECIMAL(10, 6), default=0)
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# 计费方式
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pricing_type = Column(String(20), default='token') # token / call / hybrid
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# 备注
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description = Column(Text)
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status = Column(SmallInteger, default=1) # 0-禁用 1-启用
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created_at = Column(TIMESTAMP, default=datetime.now)
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updated_at = Column(TIMESTAMP, default=datetime.now, onupdate=datetime.now)
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class TenantBilling(Base):
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"""租户账单表(月度汇总)"""
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__tablename__ = "platform_tenant_billing"
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id = Column(Integer, primary_key=True, autoincrement=True)
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tenant_id = Column(String(50), nullable=False, index=True)
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billing_month = Column(String(7), nullable=False) # 格式: YYYY-MM
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# 使用量统计
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total_calls = Column(Integer, default=0) # 总调用次数
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total_input_tokens = Column(Integer, default=0) # 总输入token
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total_output_tokens = Column(Integer, default=0) # 总输出token
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# 费用统计
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total_cost = Column(DECIMAL(12, 4), default=0) # 总费用
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# 按模型分类的费用明细
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cost_by_model = Column(JSON) # {"gpt-4": 10.5, "claude-3": 5.2}
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# 按应用分类的费用明细
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cost_by_app = Column(JSON) # {"tools": 8.0, "interview": 7.7}
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# 状态
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status = Column(String(20), default='pending') # pending / confirmed / paid
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created_at = Column(TIMESTAMP, default=datetime.now)
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updated_at = Column(TIMESTAMP, default=datetime.now, onupdate=datetime.now)
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class Config:
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# 联合唯一索引
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__table_args__ = (
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{'mysql_charset': 'utf8mb4'}
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)
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