feat(agent): Refactor agent architecture to enhance content routing and file search capabilities

- Introduced ContentRouterAgent to determine the next step in information gathering (file search, web search, or analysis) based on task relevance and focus mode.
- Added FileSearchAgent to handle searching through attached files, processing file content into searchable documents.
- Updated SynthesizerAgent to utilize a prompt template for generating comprehensive responses based on context and user queries.
- Enhanced TaskManagerAgent to consider file context when creating tasks.
- Improved AnalyzerAgent to assess the sufficiency of context, including file and web documents.
- Implemented utility functions for processing files and ranking documents based on similarity to queries.
- Updated prompts to include new instructions for handling file context and routing decisions.
- Adjusted agent search workflow to integrate new agents and support file handling.

src/lib/prompts/index.ts

@@ -2,6 +2,7 @@ import { webSearchResponsePrompt, webSearchRetrieverPrompt } from './webSearch';
 import { localResearchPrompt } from './localResearch';
 import { chatPrompt } from './chat';
 import { taskBreakdownPrompt } from './taskBreakdown';
+import { synthesizerPrompt } from './synthesizer';
 
 const prompts = {
   webSearchResponsePrompt,
@@ -9,6 +10,7 @@ const prompts = {
   localResearchPrompt,
   chatPrompt,
   taskBreakdownPrompt,
+  synthesizerPrompt,
 };
 
 export default prompts;