fix(rag): RAG-retrieved use USER role, AGENTIC RAG mode add missing retrieveConfig

[guanxuc]

AgentScope-Java Version

1.0.11

Description

• RAG-retrieved use USER role, Fixes: [Bug]:GenericRAGHook should use user message #941
• AGENTIC RAG mode add missing retrieveConfig, Fixes: [Bug]:ReActAgent AGENTIC RAG mode ignores retrieveConfig, causing configuration to be ineffective #932

Checklist

Please check the following items before code is ready to be reviewed.

• Code has been formatted with mvn spotless:apply
• All tests are passing (mvn test)
• Javadoc comments are complete and follow project conventions
• Related documentation has been updated (e.g. links, examples, etc.)
• Code is ready for review

[codecov]

Codecov Report

❌ Patch coverage is 43.75000% with 9 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...o/agentscope/core/rag/KnowledgeRetrievalTools.java	25.00%	5 Missing and 1 partial ⚠️
...in/java/io/agentscope/core/rag/GenericRAGHook.java	0.00%	3 Missing ⚠️

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[guanxuc]

The unit test has covered the code.