feat: AI生图功能丰富

server/api/materials.py

@@ -202,7 +202,8 @@ async def create_materials(
     await db.commit()
     await db.refresh(product)
 
-    if queued:
+    # 多批上报的最后一批可能全被去重；仍要扫描此前批次留下的 pending 素材。
+    if req.process_assets:
         background.add_task(process_product_assets, str(product.id))
     return MaterialsResponse(
         product_id=str(product.id),

server/api/suite.py

@@ -316,12 +316,15 @@ async def download_suite_zip(suite_id: str):
 async def suite_image_edit(req: ImageEditSingleRequest) -> ImageEditTaskResponse:
     """提交单张图生图任务；立即返回任务 ID，实际生成在统一队列异步执行。"""
     settings = get_settings()
-    provider_name = resolve_provider(req.model, None, settings.image_provider)
+    structured_edit = bool(req.main_image_url and req.main_image_url.strip())
+    if structured_edit and req.model not in {"gpt-image-2", "gpt-image-2@pcore"}:
+        raise HTTPException(status_code=400, detail="单张 AI 编辑仅支持 Pcore gpt-image-2")
+    provider_name = "pcore" if structured_edit else resolve_provider(req.model, None, settings.image_provider)
     if provider_name not in GENERATORS:
         raise HTTPException(status_code=400, detail=f"未知 provider: {provider_name}")
     validate_model(provider_name, req.model)
 
-    spec = {"lang": "ru", "ratio": "3:4"}  # 试算页固定 Ozon 规格（俄文图内文案 · 3:4）
+    spec = {"lang": req.target_language if structured_edit else "ru", "ratio": req.ratio if structured_edit else "3:4"}
     model = api_model(req.model)  # 剥 @provider 后缀，供应商侧只认裸模型名
     product_id = (req.product_id or "").strip() or None
     if product_id:
@@ -331,7 +334,12 @@ async def suite_image_edit(req: ImageEditSingleRequest) -> ImageEditTaskResponse
             raise HTTPException(status_code=400, detail="product_id 不是合法 UUID") from exc
 
     # 单图编辑优先级高于套图；支持多张参考底图，保持传入顺序并去重。
-    ref_urls = list(dict.fromkeys(url for url in [*req.image_urls, req.image_url] if url))
+    if structured_edit:
+        ref_urls = list(dict.fromkeys(url.strip() for url in [req.main_image_url, *req.reference_image_urls] if url and url.strip()))
+        if len(ref_urls) > 3:
+            raise HTTPException(status_code=400, detail="辅助参考图最多两张")
+    else:
+        ref_urls = list(dict.fromkeys(url for url in [*req.image_urls, req.image_url] if url))
     if not ref_urls:
         raise HTTPException(status_code=400, detail="请至少选择一张参考底图")
     if req.mode == "outpaint":
@@ -341,6 +349,10 @@ async def suite_image_edit(req: ImageEditSingleRequest) -> ImageEditTaskResponse
             raise HTTPException(status_code=400, detail="仅扩图只能选择一张参考底图")
         if req.generate_size_chart:
             raise HTTPException(status_code=400, detail="仅扩图不能同时生成尺寸标注图")
+        if structured_edit and req.ratio != "3:4":
+            raise HTTPException(status_code=400, detail="仅扩图只支持 3:4")
+    if structured_edit and req.mode == "edit" and req.background == "reference" and len(ref_urls) < 2:
+        raise HTTPException(status_code=400, detail="参考图背景需要选择一张辅助参考图")
 
     # prompt_extra 清空展示文案，避免中文 UI 文案进入模型 prompt。
     is_size_chart = bool(req.generate_size_chart)
@@ -354,10 +366,16 @@ async def suite_image_edit(req: ImageEditSingleRequest) -> ImageEditTaskResponse
         lang=spec["lang"],
         ratio=spec["ratio"],
         # 仅扩图与用户明确填写的 AI 编辑要求都不得继承默认「纯净棚拍」风格。
-        style_set=0 if req.mode == "outpaint" or bool(req.prompt.strip()) else 5,
+        style_set=req.style_set if structured_edit and req.mode == "edit" else (0 if req.mode == "outpaint" or bool(req.prompt.strip()) else 5),
         request_payload={
             "context": _with_dimensions({"title": "AI 精修"}, req.dimensions, required=is_size_chart),
-            "style_prompt": None,
+            "style_prompt": req.style_prompt if structured_edit else None,
+            "single_edit": {
+                "translate_text": req.translate_text,
+                "target_language": req.target_language,
+                "background": req.background,
+                "background_description": req.background_description,
+            } if structured_edit and req.mode == "edit" else None,
             "requirements": req.prompt,
             "operation": req.mode,
             # 用户写了要求时，这一轮只执行其要求，不再拼营销图、默认风格或默认俄文文案。