feat:Strengthen the testing framework

src/lib/async-submit.ts

@@ -1,4 +1,5 @@
 import { logInfo as _ulogInfo, logError as _ulogError } from '@/lib/logging/core'
+import { buildFalQueueUrl } from '@/lib/providers/fal/base-url'
 /**
  * 异步任务提交工具
  * 
@@ -24,7 +25,7 @@ export async function submitFalTask(endpoint: string, input: Record<string, unkn
         throw new Error('请配置 FAL API Key')
     }
 
-    const response = await fetch(`https://queue.fal.run/${endpoint}`, {
+    const response = await fetch(buildFalQueueUrl(endpoint), {
         method: 'POST',
         headers: {
             'Content-Type': 'application/json',
@@ -93,7 +94,7 @@ export async function queryFalStatus(endpoint: string, requestId: string, apiKey
         _ulogInfo(`[FAL Status] 解析端点 ${endpoint} -> ${baseEndpoint} (忽略路径: ${parsed.path})`)
     }
 
-    const statusUrl = `https://queue.fal.run/${baseEndpoint}/requests/${requestId}/status?logs=0`
+    const statusUrl = buildFalQueueUrl(`${baseEndpoint}/requests/${requestId}/status?logs=0`)
 
     // FAL 状态查询使用 GET 方法
     const response = await fetch(statusUrl, {
@@ -122,7 +123,7 @@ export async function queryFalStatus(endpoint: string, requestId: string, apiKey
         // 优先使用返回的 response_url，如果没有则构建 URL
         // 注意：获取结果必须使用完整的原始端点（包括 /edit 等路径），而不是 baseEndpoint
         // 否则 FAL 会把请求当作新任务处理，导致 422 错误（缺少 image_urls 等必需参数）
-        const resultUrl = data.response_url || `https://queue.fal.run/${endpoint}/requests/${requestId}`
+        const resultUrl = data.response_url || buildFalQueueUrl(`${endpoint}/requests/${requestId}`)
         _ulogInfo(`[FAL Status] 任务已完成，获取结果: ${resultUrl}`)
 
         const resultResponse = await fetch(resultUrl, {

src/lib/async-task-utils.ts

@@ -6,6 +6,7 @@
  */
 
 import { logInternal } from './logging/semantic'
+import { buildFalQueueUrl } from '@/lib/providers/fal/base-url'
 
 export interface TaskStatus {
     status: 'pending' | 'completed' | 'failed'
@@ -51,7 +52,7 @@ export async function queryBananaTaskStatus(requestId: string, apiKey: string):
 
     try {
         const statusResponse = await fetch(
-            `https://queue.fal.run/fal-ai/nano-banana-pro/requests/${requestId}/status`,
+            buildFalQueueUrl(`fal-ai/nano-banana-pro/requests/${requestId}/status`),
             {
                 headers: { 'Authorization': `Key ${apiKey}` },
                 cache: 'no-store'
@@ -68,7 +69,7 @@ export async function queryBananaTaskStatus(requestId: string, apiKey: string):
         if (data.status === 'COMPLETED') {
             // 获取结果
             const resultResponse = await fetch(
-                `https://queue.fal.run/fal-ai/nano-banana-pro/requests/${requestId}`,
+                buildFalQueueUrl(`fal-ai/nano-banana-pro/requests/${requestId}`),
                 {
                     headers: { 'Authorization': `Key ${apiKey}` },
                     cache: 'no-store'

src/lib/generators/fal.ts

@@ -25,6 +25,7 @@ import {
 import { getProviderConfig } from '@/lib/api-config'
 import { submitFalTask } from '@/lib/async-submit'
 import { normalizeToBase64ForGeneration } from '@/lib/media/outbound-image'
+import { buildFalQueueUrl } from '@/lib/providers/fal/base-url'
 
 // ============================================================
 // 图像模型端点映射（modelId → FAL 端点前缀）
@@ -146,7 +147,7 @@ export class FalImageGenerator extends BaseImageGenerator {
         logger.info({
             message: 'FAL image request body summary',
             details: {
-                url: `https://queue.fal.run/${endpoint}`,
+                url: buildFalQueueUrl(endpoint),
                 promptLength: prompt.length,
                 imageUrlsCount: hasReferenceImages ? (body.image_urls as string[]).length : 0,
                 resolution: body.resolution ?? null,
@@ -156,7 +157,7 @@ export class FalImageGenerator extends BaseImageGenerator {
         })
 
         // 提交异步任务
-        const submitResponse = await fetch(`https://queue.fal.run/${endpoint}`, {
+        const submitResponse = await fetch(buildFalQueueUrl(endpoint), {
             method: 'POST',
             headers: {
                 'Content-Type': 'application/json',

src/lib/providers/fal/base-url.ts

@@ -0,0 +1,16 @@
+const DEFAULT_FAL_QUEUE_BASE_URL = 'https://queue.fal.run'
+
+function normalizeBaseUrl(value: string): string {
+  return value.replace(/\/+$/, '')
+}
+
+export function resolveFalQueueBaseUrl(): string {
+  const override = process.env.FAL_QUEUE_BASE_URL?.trim()
+  if (!override) return DEFAULT_FAL_QUEUE_BASE_URL
+  return normalizeBaseUrl(override)
+}
+
+export function buildFalQueueUrl(path: string): string {
+  const normalizedPath = path.replace(/^\/+/, '')
+  return `${resolveFalQueueBaseUrl()}/${normalizedPath}`
+}