feat: add profile api

apps/user/models.py

@@ -51,6 +51,7 @@ class User(AbstractBaseUser, PermissionsMixin, BaseModel):
         null=True, blank=True, verbose_name='所属科室'
     )
     title_name = models.CharField('职称', max_length=50, blank=True)
+    practice_years = models.CharField('执业年限', max_length=20, blank=True)
     major = models.CharField('专业', max_length=100, blank=True)
     training_stage = models.CharField('培训阶段', max_length=50, blank=True)
     learning_target = models.CharField('学习目标', max_length=255, blank=True)
@@ -138,6 +139,10 @@ class Institution(BaseModel):
     level = models.CharField('等级', max_length=30, blank=True)
     province = models.CharField('省份', max_length=50, blank=True)
     city = models.CharField('城市', max_length=50, blank=True)
+    banner_url = models.CharField(
+        '机构Banner图', max_length=500, blank=True,
+        help_text='机构专属图片：可为静态相对路径（如 institutions/xxx.png）或完整 http(s) URL'
+    )
 
     class Meta:
         db_table = 'institution'