Implement Phase 2: Refresh tokens, 2FA, password reset, and audit logging

Co-authored-by: mblanke <9078342+mblanke@users.noreply.github.com>

backend/app/schemas/audit.py

@@ -0,0 +1,29 @@
+from pydantic import BaseModel
+from typing import Optional, Dict, Any
+from datetime import datetime
+
+
+class AuditLogBase(BaseModel):
+    """Base audit log schema"""
+    action: str
+    resource_type: str
+    resource_id: Optional[int] = None
+    details: Optional[Dict[str, Any]] = None
+
+
+class AuditLogCreate(AuditLogBase):
+    """Schema for creating an audit log entry"""
+    pass
+
+
+class AuditLogRead(AuditLogBase):
+    """Schema for reading audit log data"""
+    id: int
+    user_id: Optional[int]
+    tenant_id: int
+    ip_address: Optional[str]
+    user_agent: Optional[str]
+    created_at: datetime
+
+    class Config:
+        from_attributes = True