开发了多角色登录与鉴权接口：实现了普通用户、企业和管理员的登录分流，并支持Token验证。

开发了权限控制接口：实现了通过数据库分配菜单权限节点，控制接口访问安全。
开发了实名认证中心：实现了个人身份证信息与企业营业执照的提交与审核接口。
开发了任务与协作大厅核心业务：实现了任务的发布、接单、状态流转以及专家邀约接口。
配置了全局环境变量与数据库引擎：集成了 PostgreSQL 数据库、Redis 缓存与 MinIO 对象存储。

opc_cert/models.py

@@ -0,0 +1,32 @@
+import uuid
+from django.db import models
+
+class CertStatus(models.TextChoices):
+    PENDING = 'PENDING', '待审核'
+    APPROVED = 'APPROVED', '已通过'
+    REJECTED = 'REJECTED', '已驳回'
+
+class OpcCertification(models.Model):
+    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+    user = models.ForeignKey('users.User', on_delete=models.CASCADE, related_name='opc_certifications')
+    real_name = models.CharField(max_length=64)
+    id_card = models.TextField(null=True, blank=True)
+    skills = models.JSONField(default=list)
+    experience = models.TextField(null=True, blank=True)
+    resume_url = models.CharField(max_length=512, null=True, blank=True)
+    attachments = models.JSONField(default=list)
+    status = models.CharField(max_length=16, choices=CertStatus.choices, default=CertStatus.PENDING)
+    reject_reason = models.TextField(null=True, blank=True)
+    reviewer = models.ForeignKey('users.User', on_delete=models.SET_NULL, null=True, blank=True, related_name='reviewed_certifications')
+    reviewed_at = models.DateTimeField(null=True, blank=True)
+    rating = models.SmallIntegerField(null=True, blank=True)
+    rating_tags = models.JSONField(default=list)
+    rating_note = models.TextField(null=True, blank=True)
+    rated_by = models.ForeignKey('users.User', on_delete=models.SET_NULL, null=True, blank=True, related_name='rated_certifications')
+    rated_at = models.DateTimeField(null=True, blank=True)
+    version = models.SmallIntegerField(default=1)
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        db_table = 'opc_certifications'