feat: support to adjust writing style (#290)

* feat: implment backend for adjust report style

* feat: add web part

* fix test cases

* fix: fix typing

---------

Co-authored-by: Henry Li <henry1943@163.com>

src/config/configuration.py

@@ -8,6 +8,7 @@ from typing import Any, Optional
 from langchain_core.runnables import RunnableConfig
 
 from src.rag.retriever import Resource
+from src.config.report_style import ReportStyle
 
 
 @dataclass(kw_only=True)
@@ -21,6 +22,7 @@ class Configuration:
     max_step_num: int = 3  # Maximum number of steps in a plan
     max_search_results: int = 3  # Maximum number of search results
     mcp_settings: dict = None  # MCP settings, including dynamic loaded tools
+    report_style: str = ReportStyle.ACADEMIC.value  # Report style
 
     @classmethod
     def from_runnable_config(

src/config/report_style.py

@@ -0,0 +1,8 @@
+import enum
+
+
+class ReportStyle(enum.Enum):
+    ACADEMIC = "academic"
+    POPULAR_SCIENCE = "popular_science"
+    NEWS = "news"
+    SOCIAL_MEDIA = "social_media"