From 30c7caff414525987fe32c86fbad6ab1d4eb9143 Mon Sep 17 00:00:00 2001
From: pmc <740076875@qq.com>
Date: Thu, 7 May 2026 17:34:38 +0800
Subject: [PATCH] =?UTF-8?q?feat(01-01):=20aiapp=20=E6=96=B0=E5=A2=9E=20Cre?=
 =?UTF-8?q?dentialSlot=20=E5=8D=95=E4=BE=8B=E6=A8=A1=E5=9E=8B?=
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- 在 aiapp/models.py 末尾追加 CredentialSlot（不动 Bot / ChatMessage）
- 字段：app_id CharField(128) / access_token CharField(512) / updated_at auto_now
- 单例三件套：pk=1 + save() 钩子重定向 + get_solo() 类方法（1:1 复刻 AffinitySetting）
- 不引入 gettext_lazy / created_at，沿用仓库中文 verbose_name 实操约定
- 覆盖需求 CRED-01 模型层
---
 qy_lty/aiapp/models.py | 43 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/qy_lty/aiapp/models.py b/qy_lty/aiapp/models.py
index 4645e48..81f3ed6 100644
--- a/qy_lty/aiapp/models.py
+++ b/qy_lty/aiapp/models.py
@@ -49,4 +49,45 @@ class ChatMessage(models.Model):
         verbose_name_plural = '聊天消息'
 
     def __str__(self):
-        return f"{self.sender}: {self.message[:50]} ({self.timestamp})"
\ No newline at end of file
+        return f"{self.sender}: {self.message[:50]} ({self.timestamp})"
+
+
+class CredentialSlot(models.Model):
+    """通用凭据槽位（单例）— Milestone v1.0 / Phase 1
+
+    全局唯一一条记录，存第三方服务（Kimi / 阿里云 / 火山等）的 APP ID + Access Token。
+    通过 pk=1 + get_or_create + save() 钩子三件套保证单例：
+        - 任何 .save() 在已有记录时把新对象 pk 改成现有那条
+        - get_solo() 是单一访问入口（Phase 2/3 视图统一调用）
+        - DB 层无额外约束，绕过 ORM 的 bulk_create / 原始 SQL 不在保护范围
+    """
+
+    app_id = models.CharField(
+        'APP ID', max_length=128, blank=True, default='',
+        help_text='第三方服务商分配的 APP ID；运营在 Admin 录入'
+    )
+    access_token = models.CharField(
+        'Access Token', max_length=512, blank=True, default='',
+        help_text='第三方服务商访问令牌；DB 明文存储，Admin 列表/查看态末 4 位脱敏'
+    )
+    updated_at = models.DateTimeField('更新时间', auto_now=True)
+
+    class Meta:
+        verbose_name = '凭据槽位'
+        verbose_name_plural = '凭据槽位'
+
+    def __str__(self):
+        return f"凭据槽位 (updated {self.updated_at:%Y-%m-%d %H:%M})"
+
+    def save(self, *args, **kwargs):
+        # 强制单例：新增时如果已有记录则覆盖到现有 pk
+        if not self.pk and CredentialSlot.objects.exists():
+            existing = CredentialSlot.objects.first()
+            self.pk = existing.pk
+        super().save(*args, **kwargs)
+
+    @classmethod
+    def get_solo(cls):
+        """获取单例实例，不存在则用默认值创建（pk=1）"""
+        instance, _ = cls.objects.get_or_create(pk=1)
+        return instance
\ No newline at end of file