feat 支持生成文档摘要提示词可配置

[coltea]

PR 标题

feat 支持生成文档摘要提示词可配置

相关 Issue

关闭或关联的 Issue (如有):

• 修复 [功能建议] 文档库功能优化 #123
• 关联 [功能建议] 问答模式下代码块的背景色没了 #456

变更类型

请勾选适用的变更类型:

• Bug 修复 (不兼容变更的修复)
• 新功能 (不兼容变更的新功能)
• 功能改进 (不兼容现有功能的改进)
• 文档更新
• 依赖更新
• 重构 (不影响功能的代码修改)
• 测试用例
• CI/CD 配置变更
• 其他 (请描述):

变更内容

详细描述本次 PR 的具体变更内容:

1. feat 支持生成文档摘要提示词可配置

测试情况

描述本次变更的测试情况:

• 已本地测试
• 已添加测试用例
• 不需要测试 (理由: )

其他说明

任何其他需要说明的事项:

[Copilot]

Pull request overview

This PR introduces configurable prompts for document summary generation. Previously, the summary prompt was hardcoded in the LLMUsecase.requestSummary method. Now, the prompt can be retrieved from the database based on the knowledge base ID (kbID), allowing for per-KB customization of summary generation behavior.

Key Changes:

• Added kbID parameter to the summary generation pipeline to enable prompt retrieval
• Implemented GetSummaryPrompt repository method to fetch KB-specific summary prompts from settings
• Added default summary prompt constant for reference and potential fallback scenarios

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
backend/usecase/node.go	Passes kbID to SummaryNode method
backend/usecase/llm.go	Updates SummaryNode and requestSummary signatures to accept kbID; retrieves custom summary prompt
backend/repo/pg/prompt.go	Adds GetSummaryPrompt method and summary_content field to promptJson struct
backend/pro	Subproject commit update
backend/handler/mq/rag.go	Passes kbID to SummaryNode method call
backend/domain/llm.go	Defines default summary prompt constant

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[Copilot]

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

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