初始提交：希姆计算硬件资产管理系统

功能：
- Django + MySQL + 深色主题
- 资产增删改查（含资产编号、BMC地址、设备位置、备注）
- Excel导入导出（分类自动创建）
- 设备分类管理
- 资产变更记录追踪
- 质保到期提醒
- 用户认证系统
- Docker部署支持

assetapp/models.py

@@ -0,0 +1,116 @@
+from django.db import models
+from django.contrib.auth.models import User
+from datetime import date
+
+
+class Category(models.Model):
+    """设备分类"""
+    name = models.CharField('分类名称', max_length=50, unique=True)
+    description = models.CharField('描述', max_length=200, blank=True, default='')
+    created_at = models.DateTimeField('创建时间', auto_now_add=True)
+
+    class Meta:
+        verbose_name = '设备分类'
+        verbose_name_plural = verbose_name
+        ordering = ['name']
+
+    def __str__(self):
+        return self.name
+
+
+class Asset(models.Model):
+    """硬件资产"""
+
+    STATUS_CHOICES = [
+        ('in_use', '在用'),
+        ('idle', '闲置'),
+        ('maintenance', '维修中'),
+        ('scrapped', '已报废'),
+    ]
+
+    # 基本信息
+    asset_number = models.CharField('资产编号', max_length=50, unique=True, db_index=True)
+    name = models.CharField('设备名称', max_length=100)
+    category = models.ForeignKey(Category, on_delete=models.PROTECT, verbose_name='设备分类', related_name='assets')
+
+    # 硬件信息
+    brand = models.CharField('品牌', max_length=50, blank=True, default='')
+    model = models.CharField('型号', max_length=100, blank=True, default='')
+    serial_number = models.CharField('序列号', max_length=100, blank=True, default='', db_index=True)
+
+    # 位置信息
+    location = models.CharField('设备位置', max_length=200, blank=True, default='', help_text='楼层/房间/区域')
+    cabinet = models.CharField('机柜', max_length=50, blank=True, default='')
+    cabinet_position = models.CharField('机柜位置', max_length=50, blank=True, default='', help_text='U位')
+
+    # 网络信息
+    bmc_address = models.GenericIPAddressField('BMC地址', blank=True, null=True)
+    ip_address = models.GenericIPAddressField('IP地址', blank=True, null=True)
+
+    # 采购与质保
+    purchase_date = models.DateField('采购日期', blank=True, null=True)
+    warranty_expire = models.DateField('质保到期', blank=True, null=True)
+    supplier = models.CharField('供应商', max_length=100, blank=True, default='')
+
+    # 管理信息
+    responsible_person = models.CharField('负责人', max_length=50, blank=True, default='')
+    status = models.CharField('状态', max_length=20, choices=STATUS_CHOICES, default='in_use')
+    remark = models.TextField('备注', blank=True, default='')
+
+    # 系统字段
+    created_by = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, blank=True, verbose_name='创建人')
+    created_at = models.DateTimeField('创建时间', auto_now_add=True)
+    updated_at = models.DateTimeField('更新时间', auto_now=True)
+
+    class Meta:
+        verbose_name = '硬件资产'
+        verbose_name_plural = verbose_name
+        ordering = ['-created_at']
+
+    def __str__(self):
+        return f'{self.asset_number} - {self.name}'
+
+    @property
+    def is_expired(self):
+        if self.warranty_expire:
+            return self.warranty_expire < date.today()
+        return False
+
+    @property
+    def is_expiring_soon(self):
+        if self.warranty_expire:
+            from datetime import timedelta
+            return date.today() <= self.warranty_expire <= date.today() + timedelta(days=30)
+        return False
+
+
+class AssetChangeLog(models.Model):
+    """资产变更记录"""
+
+    ACTION_CHOICES = [
+        ('create', '创建'),
+        ('update', '更新'),
+        ('delete', '删除'),
+        ('import', '导入'),
+        ('export', '导出'),
+        ('status_change', '状态变更'),
+    ]
+
+    asset = models.ForeignKey(Asset, on_delete=models.SET_NULL, null=True, blank=True,
+                               verbose_name='资产', related_name='change_logs')
+    asset_number = models.CharField('资产编号', max_length=50, db_index=True)
+    action = models.CharField('操作类型', max_length=20, choices=ACTION_CHOICES)
+    field_name = models.CharField('变更字段', max_length=50, blank=True, default='')
+    old_value = models.TextField('旧值', blank=True, default='')
+    new_value = models.TextField('新值', blank=True, default='')
+    description = models.TextField('描述', blank=True, default='')
+    operator = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, blank=True, verbose_name='操作人')
+    created_at = models.DateTimeField('操作时间', auto_now_add=True)
+
+    class Meta:
+        verbose_name = '变更记录'
+        verbose_name_plural = verbose_name
+        ordering = ['-created_at']
+
+    def __str__(self):
+        return f'{self.asset_number} - {self.get_action_display()}'