```

feat(auth): 添加用户权限获取接口并完善JWT令牌角色信息

- 在JWT令牌中添加用户角色信息
- 新增get_my_permissions接口用于获取当前用户权限码列表
- 重构认证回调逻辑，增加错误日志记录
- 更新用户信息获取接口使用Authorization头验证
```

backend/alembic/versions/h8i9j0k1l2m3_add_device_replacements.py

@@ -0,0 +1,38 @@
+"""add device_replacements table
+
+Revision ID: h8i9j0k1l2m3
+Revises: g7h8i9j0k1l2
+Create Date: 2026-04-05
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = 'h8i9j0k1l2m3'
+down_revision = 'g7h8i9j0k1l2'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+        'device_replacements',
+        sa.Column('id', sa.BigInteger(), primary_key=True),
+        sa.Column('onu_device_id', sa.BigInteger(), sa.ForeignKey('onu_devices.id'), nullable=False),
+        sa.Column('old_mac', sa.String(17), nullable=False),
+        sa.Column('new_mac', sa.String(17), nullable=False),
+        sa.Column('reason', sa.Text()),
+        sa.Column('operator_id', sa.String(100)),
+        sa.Column('operator_name', sa.String(100)),
+        sa.Column('replaced_at', sa.TIMESTAMP(), nullable=False, server_default=sa.text('now()')),
+        sa.Column('created_at', sa.TIMESTAMP(), nullable=False, server_default=sa.text('now()')),
+    )
+    op.create_index('idx_device_replacements_onu_device_id', 'device_replacements', ['onu_device_id'])
+    op.create_index('idx_device_replacements_old_mac', 'device_replacements', ['old_mac'])
+    op.create_index('idx_device_replacements_new_mac', 'device_replacements', ['new_mac'])
+
+
+def downgrade():
+    op.drop_index('idx_device_replacements_new_mac', 'device_replacements')
+    op.drop_index('idx_device_replacements_old_mac', 'device_replacements')
+    op.drop_index('idx_device_replacements_onu_device_id', 'device_replacements')
+    op.drop_table('device_replacements')