chore: update api endpoints and lock tenant role

app/channel/dashboard/page.tsx

@@ -927,22 +927,15 @@ export default function ChannelDashboard() {
                       </div>
                       <div className="space-y-2">
                         <Label htmlFor="plan">{language === "zh" ? "系统权限" : "System Role"}</Label>
-                        <Select 
-                          value={createTenantForm.systemRole}
-                          onValueChange={(value: "tenant" | "admin" | "billing-admin" | "operations-admin") => 
-                            setCreateTenantForm({ ...createTenantForm, systemRole: value })
-                          }
-                        >
-                          <SelectTrigger className="bg-background">
-                            <SelectValue />
-                          </SelectTrigger>
-                          <SelectContent>
-                            <SelectItem value="tenant">{language === "zh" ? "租户" : "Tenant"}</SelectItem>
-                            <SelectItem value="admin">{language === "zh" ? "管理员" : "Admin"}</SelectItem>
-                            <SelectItem value="billing-admin">{language === "zh" ? "计费管理员" : "Billing Admin"}</SelectItem>
-                            <SelectItem value="operations-admin">{language === "zh" ? "运营管理员" : "Operations Admin"}</SelectItem>
-                          </SelectContent>
-                        </Select>
+                        <Input
+                          id="plan"
+                          value={language === "zh" ? "租户（默认）" : "Tenant (default)"}
+                          readOnly
+                          disabled
+                          className="bg-muted text-muted-foreground"
+                        />
+                        {/* 锁定为租户角色，避免渠道端自行调整权限 */}
+                        <input type="hidden" value={createTenantForm.systemRole} readOnly />
                       </div>
                     </div>
                     <DialogFooter>

lib/api-client.ts

@@ -3,9 +3,9 @@
 import { getAuthToken, clearAllTokens } from "@/lib/auth"
 
 export const API_BASE_URLS = {
-  dataIngestion: process.env.NEXT_PUBLIC_DATA_INGESTION_URL || "http://localhost:8001",
-  mcpServer: process.env.NEXT_PUBLIC_MCP_SERVER_URL || "http://localhost:8002", // MCP Server 映射到主机端口 8002
-  gateway: process.env.NEXT_PUBLIC_API_GATEWAY_URL || "http://localhost:80",
+  dataIngestion: process.env.NEXT_PUBLIC_DATA_INGESTION_URL || "http://135.171.216.9/api/data-ingestion",
+  mcpServer: process.env.NEXT_PUBLIC_MCP_SERVER_URL || "http://135.171.216.9/api/mcp",
+  gateway: process.env.NEXT_PUBLIC_API_GATEWAY_URL || "http://135.171.216.9/api",
 }
 
 // Helper function to get API key
@@ -70,11 +70,45 @@ export interface APIResponse<T = any> {
 
 // Helper function to handle API responses
 async function handleResponse<T = any>(response: Response): Promise<T> {
+  const contentType = response.headers.get("content-type")
+  
+  // 先读取响应文本
+  const text = await response.text()
+  
   if (!response.ok) {
-    const error = await response.json().catch(() => ({ detail: response.statusText }))
-    throw new Error((error as any).detail || `HTTP error! status: ${response.status}`)
+    let errorMessage = `HTTP ${response.status}: ${response.statusText}`
+    
+    // 尝试解析错误响应
+    if (contentType?.includes("application/json") && text) {
+      try {
+        const error = JSON.parse(text)
+        errorMessage = error.detail || error.message || errorMessage
+      } catch (e) {
+        console.error("Failed to parse error response as JSON:", e)
+        console.error("Response text:", text.substring(0, 200))
+      }
+    } else {
+      console.error("Non-JSON error response:", text.substring(0, 200))
+    }
+    
+    throw new Error(errorMessage)
+  }
+  
+  // 检查响应是否为JSON
+  if (!contentType?.includes("application/json")) {
+    console.error("Expected JSON but got:", contentType)
+    console.error("Response preview:", text.substring(0, 200))
+    throw new Error(`Server returned non-JSON response. Content-Type: ${contentType || 'unknown'}`)
+  }
+  
+  // 解析JSON
+  try {
+    return JSON.parse(text) as T
+  } catch (e) {
+    console.error("Failed to parse JSON response:", e)
+    console.error("Response text:", text.substring(0, 300))
+    throw new Error("Invalid JSON response from server")
   }
-  return response.json() as Promise<T>
 }
 
 // Helper function to check if backend is reachable