feat: Extract quoted message content for QQ bot and pass to Dify workflows

[Copilot]

概述 / Overview

QQ bot now extracts quoted/referenced message content and exposes it as quoted_message_text variable for Dify workflows. Previously, when users replied to messages in QQ, only the new message was sent downstream, losing the quoted context.

Changes:

• QQ API Layer - Extract message_reference from payloads; fetch original message via get_message_by_id() with context-aware endpoint selection
• Message Conversion - Create Quote components from referenced messages including text and images; graceful degradation on fetch failures
• Pipeline Integration - Add quoted_message_text to query variables, available as {{quoted_message_text}} in Dify

Usage in Dify:

# Enable in pipeline config
trigger:
  misc:
    combine-quote-message: true

# Access in Dify workflow
User Prompt: |
  Quoted: {{quoted_message_text}}
  Reply: {{user_message_text}}

Technical Notes:

• Each quoted message requires 1 API call to QQ servers (subject to rate limits)
• Validates exactly one context parameter (channel/group/user) provided
• Supports C2C, GROUP_AT, AT_MESSAGE, DIRECT_MESSAGE event types

更改前后对比截图 / Screenshots

修改前 / Before:

• QQ引用消息场景：用户回复"已处理"时，Dify仅收到"已处理"，丢失被引用的原始消息上下文

修改后 / After:

• Dify同时收到 quoted_message_text（原始消息内容）和 user_message_text（用户回复），可基于完整上下文生成响应

检查清单 / Checklist

PR 作者完成 / For PR author

• 阅读仓库贡献指引了吗？ / Have you read the contribution guide?
• 与项目所有者沟通过了吗？ / Have you communicated with the project maintainer?
• 我确定已自行测试所作的更改，确保功能符合预期。 / I have tested the changes and ensured they work as expected.

项目维护者完成 / For project maintainer

• 相关 issues 链接了吗？ / Have you linked the related issues?
• 配置项写好了吗？迁移写好了吗？生效了吗？ / Have you written the configuration items? Have you written the migration? Has it taken effect?
• 依赖加到 pyproject.toml 和 core/bootutils/deps.py 了吗 / Have you added the dependencies to pyproject.toml and core/bootutils/deps.py?
• 文档编写了吗？ / Have you written the documentation?

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[Feature]: qq机器人的引用消息无法获取并传递给dify</issue_title>
<issue_description>### 这是一个？

现有功能优化

详细描述

qq 机器人的引用消息再配置流水线发送个dify是，只有对话内容，没有引用消息的原文。建议添加
例：
下图只能发送给dify 的内容是已处理，无法将引用的内容一并发送

</issue_description>

<agent_instructions>可以参考localagent获取quote消息的方式，把引用消息内容取出，以变量的形式写到query，最终传给dify
</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes [Feature]: qq机器人的引用消息无法获取并传递给dify #1729

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