fix: 修复资产/视频/三视图三处 bug + 脚本模型切 YunQi gemini

1. 视频「全部生成」串行短路:任一段提交失败就 break 致后面段不提交
   (4 个框只跑 2 个)→ 改 Promise.allSettled 并发,单段失败不拖累其余,
   部分失败也刷新并如实报告。(App.tsx)
2. 基础资产/三视图 AI 出图偶发失败「生成不出来」:中转站瞬时抖动
   (网络/5xx/429/空返回)一次失败即退费 → 加退避重试 3 次,永久错误
   (4xx 内容违规)仍立即退费。(services.py run_base_asset_task/run_triview_task)
3. 商品三视图无法用已有素材:商品卡加「使用已有素材」,选商品已有图 /
   上传本地图直接 attach 成三视图(不走平台 AI 生成、不计费)。(pipeline.tsx)
4. 脚本助手:tokenssr 欠费致 GPT-5.5/Gemini 全挂 → 文本模型切 YunQi。
   实测 YunQi gpt-5.5 频道扛不住重型结构化任务(skill 全提示词仅 1/5 成功、
   常吐空无 JSON),gemini-3.1-pro 5/5 稳定 → 默认改 gemini,停用 gpt-5.5。
   按「一 provider 一 key」拆 yunqi_gpt / yunqi_gemini 两 provider。
   (.env / settings / 迁移 0017+0018)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

core/backend/apps/ai/services.py

@@ -2,11 +2,14 @@ import json
 import re
 import subprocess
 import tempfile
+import time
 import uuid
 from datetime import timedelta
 from decimal import Decimal
 from io import BytesIO
 from pathlib import Path
+
+import requests
 from django.conf import settings
 from django.core.exceptions import ObjectDoesNotExist
 from django.db import transaction
@@ -865,6 +868,38 @@ def build_person_frontal_prompt(description: str = "") -> str:
     return render_prompt("person_portrait", default, 描述=desc)
 
 
+# --------------------------------------------------------------------------- #
+# 出图重试(中转站偶发抖动 → 一次失败就「生成不出来」的根因兜底)
+# --------------------------------------------------------------------------- #
+_IMAGE_GEN_ATTEMPTS = 3
+
+
+def _is_transient_image_error(exc: Exception) -> bool:
+    """判定出图失败是否「瞬时」(值得重试)。瞬时:网络抖动 / 5xx / 429 限流 / 中转站吐空无 media url。
+    永久(不重试,立即退费报错):4xx 内容违规 / 参数错(如 invalid_image_file)、配置缺失等。"""
+    if isinstance(exc, (requests.ConnectionError, requests.Timeout)):
+        return True
+    if isinstance(exc, requests.HTTPError):
+        code = getattr(getattr(exc, "response", None), "status_code", 0) or 0
+        return code >= 500 or code == 429
+    # extract_first_media_url 在响应没有 url 时抛 ValueError —— 多为中转站偶发空返回,重试常能拿到
+    if isinstance(exc, ValueError) and "media url" in str(exc).lower():
+        return True
+    return False
+
+
+def _run_image_with_retry(make, *, attempts: int = _IMAGE_GEN_ATTEMPTS):
+    """跑一次出图(provider 调用 + 取 media url),瞬时错误按退避重试,永久错误立即抛。
+    make() 须返回 (response, media)。退避 2s / 4s,总耗时上限 ~6s + 出图本身,worker 内执行对用户无感。"""
+    for i in range(attempts):
+        try:
+            return make()
+        except Exception as exc:  # noqa: BLE001
+            if i == attempts - 1 or not _is_transient_image_error(exc):
+                raise
+            time.sleep(2 * (i + 1))
+
+
 def generate_base_asset(*, project, user, kind: str, prompt: str, label: str = "", group_id: str | None = None) -> AITask:
     """提交基础资产生成(**异步**):Web 请求只建 RESERVED 任务 + 预留额度(秒级),
     慢出图(文生图 / 商品 image_edit)交给 Celery worker(run_base_asset_task)跑。
@@ -927,18 +962,22 @@ def run_base_asset_task(*, task_id: str) -> None:
     provider = get_image_provider(model_config)
     reservation = task.credit_reservation
     try:
-        if use_edit and ref_url:
-            # 商品三视图:比例可在 admin 改(默认横)
-            size = prompt_ratio_size("product_triview", "1536x1024")
-            response = provider.image_edit(model=model_config.name, prompt=prompt, images=[ref_url], size=size)
-        else:
-            # 场景默认横、人物立绘默认竖;两者比例都可在 admin 改
-            if kind == BaseAssetGroup.Kind.SCENE:
-                gen_size = prompt_ratio_size("scene", "1536x1024")
+        def _make():
+            if use_edit and ref_url:
+                # 商品三视图:比例可在 admin 改(默认横)
+                size = prompt_ratio_size("product_triview", "1536x1024")
+                resp = provider.image_edit(model=model_config.name, prompt=prompt, images=[ref_url], size=size)
             else:
-                gen_size = prompt_ratio_size("person_portrait", "1024x1536")
-            response = provider.image_generation(model=model_config.name, endpoint=model_config.endpoint, prompt=prompt, size=gen_size)
-        media = provider.extract_first_media_url(response)
+                # 场景默认横、人物立绘默认竖;两者比例都可在 admin 改
+                if kind == BaseAssetGroup.Kind.SCENE:
+                    gen_size = prompt_ratio_size("scene", "1536x1024")
+                else:
+                    gen_size = prompt_ratio_size("person_portrait", "1024x1536")
+                resp = provider.image_generation(model=model_config.name, endpoint=model_config.endpoint, prompt=prompt, size=gen_size)
+            return resp, provider.extract_first_media_url(resp)
+
+        # 中转站偶发抖动(网络/5xx/限流/空返回)按退避重试,避免「一次失败就生成不出来」;永久错误仍立即退费
+        response, media = _run_image_with_retry(_make)
         with transaction.atomic():
             task.status = AITask.Status.SUCCEEDED
             task.response_payload = response
@@ -1027,9 +1066,13 @@ def run_triview_task(*, task_id: str) -> None:
     provider = get_image_provider(model_config)
     reservation = task.credit_reservation
     try:
-        tri_size = prompt_ratio_size("person_triview", "1536x1024")
-        response = provider.image_edit(model=model_config.name, prompt=prompt, images=[ref_url], size=tri_size)
-        media = provider.extract_first_media_url(response)
+        def _make():
+            tri_size = prompt_ratio_size("person_triview", "1536x1024")
+            resp = provider.image_edit(model=model_config.name, prompt=prompt, images=[ref_url], size=tri_size)
+            return resp, provider.extract_first_media_url(resp)
+
+        # 同基础资产:瞬时抖动重试,永久错误立即退费报错
+        response, media = _run_image_with_retry(_make)
         with transaction.atomic():
             task.status = AITask.Status.SUCCEEDED
             task.response_payload = response