feat(agent-runtime): 接入多服务商安全配置

agent_runtime/forms.py

@@ -0,0 +1,32 @@
+"""模型服务商配置表单。"""
+
+from django import forms
+
+
+class ProviderConfigurationForm(forms.Form):
+    """只接收用户需要决定的密钥和默认模型，不允许覆盖系统预设端点。"""
+
+    api_key = forms.CharField(
+        label="API Key",
+        max_length=500,
+        strip=True,
+        widget=forms.PasswordInput(
+            attrs={"autocomplete": "new-password", "placeholder": "粘贴服务商 API Key"}
+        ),
+    )
+    model_id = forms.CharField(
+        label="默认模型",
+        max_length=160,
+        required=False,
+        strip=True,
+        widget=forms.TextInput(attrs={"placeholder": "自动选择推荐模型"}),
+    )
+    use_as_default = forms.BooleanField(label="设为 Agent 默认服务商", required=False)
+
+    def clean_api_key(self):
+        """拒绝明显不完整的值，但不假设各厂商的固定前缀。"""
+
+        api_key = self.cleaned_data["api_key"]
+        if len(api_key) < 8:
+            raise forms.ValidationError("API Key 长度不足，请检查是否复制完整。")
+        return api_key