```

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/e5f6a7b8c9d0_add_device_daily_snapshots.py

@@ -0,0 +1,32 @@
+"""add device_daily_snapshots table
+
+Revision ID: e5f6a7b8c9d0
+Revises: d4e5f6a7b8c9
+Create Date: 2026-04-05
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = 'e5f6a7b8c9d0'
+down_revision = 'd4e5f6a7b8c9'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+        'device_daily_snapshots',
+        sa.Column('id', sa.BigInteger(), primary_key=True, index=True),
+        sa.Column('snapshot_date', sa.String(10), nullable=False),
+        sa.Column('total', sa.Integer(), nullable=False, server_default='0'),
+        sa.Column('online', sa.Integer(), nullable=False, server_default='0'),
+        sa.Column('offline', sa.Integer(), nullable=False, server_default='0'),
+        sa.Column('created_at', sa.TIMESTAMP(), server_default=sa.text('now()')),
+    )
+    op.create_index('ix_device_daily_snapshots_snapshot_date', 'device_daily_snapshots', ['snapshot_date'])
+
+
+def downgrade():
+    op.drop_index('ix_device_daily_snapshots_snapshot_date', 'device_daily_snapshots')
+    op.drop_table('device_daily_snapshots')