feat(监控): 完善系统监控、登录状态与访问审计能力

backend/app/models/security_access_log.py

@@ -6,13 +6,15 @@ import uuid
 from datetime import datetime
 from typing import Optional
 
-from sqlalchemy import DateTime, Float, Index, Integer, String
-from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy import JSON, DateTime, Float, Index, Integer, String
+from sqlalchemy.dialects.postgresql import JSONB, UUID
 from sqlalchemy.orm import Mapped, mapped_column
 from sqlalchemy.sql import func
 
 from app.db.base_class import Base
 
+JSONB_TYPE = JSON().with_variant(JSONB, "postgresql")
+
 
 class SecurityAccessLog(Base):
     __tablename__ = "security_access_logs"
@@ -21,6 +23,9 @@ class SecurityAccessLog(Base):
         Index("ix_security_log_ip_created", "client_ip", "created_at"),
         Index("ix_security_log_status_created", "status_code", "created_at"),
         Index("ix_security_log_auth_created", "auth_status", "created_at"),
+        Index("ix_security_log_request_id", "request_id"),
+        Index("ix_security_log_category_created", "category", "created_at"),
+        Index("ix_security_log_severity_created", "severity", "created_at"),
     )
 
     id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
@@ -35,8 +40,13 @@ class SecurityAccessLog(Base):
     client_platform: Mapped[Optional[str]] = mapped_column(String(16), nullable=True)
     build_channel: Mapped[Optional[str]] = mapped_column(String(16), nullable=True)
     build_commit: Mapped[Optional[str]] = mapped_column(String(64), nullable=True)
+    request_headers: Mapped[Optional[dict]] = mapped_column(JSONB_TYPE, nullable=True)
+    request_snapshot: Mapped[Optional[dict]] = mapped_column(JSONB_TYPE, nullable=True)
     auth_status: Mapped[str] = mapped_column(String(30), nullable=False)
     user_identifier: Mapped[Optional[str]] = mapped_column(String(80), nullable=True)
+    request_id: Mapped[Optional[str]] = mapped_column(String(36), nullable=True)
+    category: Mapped[Optional[str]] = mapped_column(String(30), nullable=True)
+    severity: Mapped[Optional[str]] = mapped_column(String(16), nullable=True)
     created_at: Mapped[datetime] = mapped_column(
         DateTime(timezone=True), nullable=False, server_default=func.now()
     )