feat: 优化图片资源删除管理，生图任务列表管理

server/services/prompts/gpt.py

@@ -15,7 +15,7 @@
 """
 from __future__ import annotations
 
-from .common import TEXT_RENDER, requirements_block, resolve_style, selling_point_lines
+from .common import TEXT_RENDER, params_line_for_output, requirements_block, resolve_style, selling_point_lines
 
 # 保真锁：商品由 Image 1 唯一定义，其余指令一律不得触碰商品本体
 _PRESERVE = (
@@ -55,8 +55,8 @@ def _anchor(ctx: dict) -> str:
     文字锚定用于帮模型认出"是哪件商品"，而不是"长什么样"。
     """
     line = f"CONTEXT (identification only): the product is \"{ctx['title']}\""
-    if ctx.get("params_line"):
-        line += f" ({ctx['params_line']})"
+    if ctx.get("params_line_non_cjk"):
+        line += f" ({ctx['params_line_non_cjk']})"
     return (
         line
         + ". Image 1 — not this text — defines the product's appearance; "
@@ -119,7 +119,7 @@ def _task_multi_scene(ctx: dict, lang: str) -> str:
 
 def _task_ecommerce_detail(ctx: dict, lang: str) -> str:
     sp = selling_point_lines(ctx, lang) or ctx["title"]
-    params = ctx["params_line"]
+    params = params_line_for_output(ctx, lang)
     return (
         "TASK: Detail-page hero section on a square canvas. Top half: hero banner with the unchanged "
         "product at a 3/4 angle. Bottom half: clean spec card with 3 feature rows and line icons"
@@ -128,7 +128,7 @@ def _task_ecommerce_detail(ctx: dict, lang: str) -> str:
     )
 
 def _task_size_chart(ctx: dict, lang: str) -> str:
-    dims = ctx["params_line"]
+    dims = params_line_for_output(ctx, lang)
     return (
         "TASK: Measurement chart. Show the unchanged product in clean front and side views on a light "
         "background; overlay thin technical annotation lines (arrows) marking length, width and height "
@@ -167,11 +167,7 @@ def build_prompt(type_id: str, ctx: dict, style_set: int, lang: str, extra: dict
     hint = (extra.get("prompt_hint") or "").strip()
 
     if type_id == "custom":
-        purpose = extra.get("title") or ""
-        detail = extra.get("detail") or ""
         task = "TASK: Create an e-commerce marketing image featuring the product from Image 1"
-        task += f" — {purpose}" if purpose else ""
-        task += f": {detail}" if detail else ""
         task += "."
         wants_text = True
     else: