Summary

• Define TypeScript interfaces for each main-process layer: IConversationRepository, IConversationService, IAgentManager, IAgentFactory, IWorkerTaskManager, IAgentEventEmitter, WorkerProtocol
• Implement concrete classes with constructor injection: SqliteConversationRepository, ConversationServiceImpl, IpcAgentEventEmitter, AgentFactory, WorkerTaskManager
• Replace legacy WorkerManage (switch-based dispatch) with WorkerTaskManager + AgentFactory
• Inject IAgentEventEmitter into BaseAgentManager; remove direct ipcBridge calls from agent layer
• Clean up conversationBridge: remove task.type guards from stop and sendMessage handlers, unify dispatch via IAgentManager interface
• Annotate ForkTask.postMessage with WorkerProtocol types

Architecture

Each layer now depends only on an interface, not a concrete class. Dependencies are passed via constructor injection (no DI framework).

conversationBridge (thin router)
  └── IWorkerTaskManager  ←  WorkerTaskManager
        └── IAgentFactory  ←  AgentFactory
              └── IAgentManager  ←  BaseAgentManager / concrete managers
                    └── IAgentEventEmitter  ←  IpcAgentEventEmitter

conversationBridge
  └── IConversationService  ←  ConversationServiceImpl
        └── IConversationRepository  ←  SqliteConversationRepository

Test Plan

• bun run test passes (691 tests)
• bunx tsc --noEmit passes
• bun run lint:fix produces no errors on changed files
• ConversationServiceImpl can be unit-tested by mocking IConversationRepository
• WorkerTaskManager can be unit-tested by mocking IAgentFactory
• BaseAgentManager can be unit-tested by mocking IAgentEventEmitter
• No direct getDatabase() calls remain outside SqliteConversationRepository
• No direct ipcBridge calls remain inside BaseAgentManager
• grep -rn "WorkerManage" src/ returns no results