feat: add RAG toolkit for knowledge base queries (#1003)

Co-authored-by: mkdev11 <MkDev11@users.noreply.github.com>
Co-authored-by: Wendong-Fan <w3ndong.fan@gmail.com>
Co-authored-by: Wendong-Fan <133094783+Wendong-Fan@users.noreply.github.com>

Author: MkDev11

CONTRIBUTING.md

@@ -92,19 +92,22 @@ our coding standards.
 #### Code Review Checklist
 
 - Functionality
+
   - Correctness: Does the code perform the intended task? Are edge cases handled?
   - Testing: Is there sufficient test coverage? Do all tests pass?
   - Security: Are there any security vulnerabilities introduced by the change?
   - Performance: Does the code introduce any performance regressions?
 
 - Code Quality
+
   - Readability: Is the code easy to read and understand? Is it well-commented where necessary?
   - Maintainability: Is the code structured in a way that makes future changes easy?
   - Style: Does the code follow the project’s style guidelines?
     Currently we use Ruff for format check and take [Google Python Style Guide](%22https://google.github.io/styleguide/pyguide.html%22) as reference.
   - Documentation: Are public methods, classes, and any complex logic well-documented?
 
 - Design
+
   - Consistency: Does the code follow established design patterns and project architecture?
   - Modularity: Are the changes modular and self-contained? Does the code avoid unnecessary duplication?
   - Dependencies: Are dependencies minimized and used appropriately?

README.md

@@ -75,7 +75,7 @@ Built on [CAMEL-AI][camel-site]'s acclaimed open-source project, our system intr
 - [📄 Open Source License](#-open-source-license)
 - [🌐 Community & contact](#-community--contact)
 
-####
+#### 
 
 <br/>
 

README_CN.md

@@ -74,7 +74,7 @@
 - [📄 开源许可证](#-%E5%BC%80%E6%BA%90%E8%AE%B8%E5%8F%AF%E8%AF%81)
 - [🌐 社区与联系](#-%E7%A4%BE%E5%8C%BA%E4%B8%8E%E8%81%94%E7%B3%BB)
 
-####
+#### 
 
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README_JA.md

@@ -73,7 +73,7 @@
 - [📄 オープンソースライセンス](#-%E3%82%AA%E3%83%BC%E3%83%97%E3%83%B3%E3%82%BD%E3%83%BC%E3%82%B9%E3%83%A9%E3%82%A4%E3%82%BB%E3%83%B3%E3%82%B9)
 - [🌐 コミュニティ & お問い合わせ](#-%E3%82%B3%E3%83%9F%E3%83%A5%E3%83%8B%E3%83%86%E3%82%A3--%E3%81%8A%E5%95%8F%E3%81%84%E5%90%88%E3%82%8F%E3%81%9B)
 
-####
+#### 
 
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README_PT-BR.md

@@ -74,7 +74,7 @@ Construído sobre o aclamado projeto open source da [CAMEL-AI][camel-site], noss
 - [📄 Licença Open Source](#-licen%C3%A7a-open-source)
 - [🌐 Comunidade & Contato](#-comunidade--contato)
 
-####
+#### 
 
 <br/>
 

backend/app/agent/tools.py

@@ -35,6 +35,7 @@
 from app.utils.toolkit.notion_mcp_toolkit import NotionMCPToolkit
 from app.utils.toolkit.openai_image_toolkit import OpenAIImageToolkit
 from app.utils.toolkit.pptx_toolkit import PPTXToolkit
+from app.utils.toolkit.rag_toolkit import RAGToolkit
 from app.utils.toolkit.reddit_toolkit import RedditToolkit
 from app.utils.toolkit.search_toolkit import SearchToolkit
 from app.utils.toolkit.slack_toolkit import SlackToolkit
@@ -67,6 +68,7 @@ async def get_toolkits(tools: list[str], agent_name: str, api_task_id: str):
         "mcp_search_toolkit": McpSearchToolkit,
         "notion_mcp_toolkit": NotionMCPToolkit,
         "pptx_toolkit": PPTXToolkit,
+        "rag_toolkit": RAGToolkit,
         "reddit_toolkit": RedditToolkit,
         "search_toolkit": SearchToolkit,
         "slack_toolkit": SlackToolkit,