fix(vision-v2): 恢复后台prompt配置读取，用户自定义提示词生效 #2211
Merged
xiaoxia
merged 1 commits from 2026-10-05 22:30:45 +08:00
fix/vision-v2-db-prompt into develop
1 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 xiaoxia
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35e7789c81 |
fix(vision-v2): 恢复后台prompt配置读取，修复用户自定义提示词不生效
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根因：#2200重写V2时把 prompt_loader 调用链删了，system/user prompt 全部硬编码在 vlm_fast_json.py / vlm_fallback.py，用户在后台管理端 配置 viral_video_prompt_templates 表 prompt_type='image_analysis' 的 自定义提示词完全没被读取。 修复： - 新增 vision/_prompt.py，复用 packages.application.viral_video.prompt_loader 读取后台 image_analysis 配置，30秒TTL热加载 - 判定策略：读到的system_prompt以默认XML模板开头（'你是电商商品视觉分析师'） 视为内置默认→使用硬编码JSON schema；否则视为用户自定义→使用用户 system_prompt并在末尾追加JSON硬约束'你必须只返回一个合法的JSON对象...' - user_prompt同理：用户模板存在就渲染（image_count=1/industry=通用/image_urls留空）， 不存在用硬编码默认 - DB不可用/读取异常→静默fallback到硬编码JSON prompt，不阻断流程 - fast路径(qwen3.8-flash)和pro路径(qwen3.7-plus)都接入_resolve 本地冒烟：DB不可用时fallback到默认JSON prompt正常；pro兜底返回pp质量良好。 Refs: 用户反馈后台配置提示词无效 |