feat: add file upload support

cli/src/api/apiSession.ts

@@ -24,6 +24,7 @@ import type {
 import { AgentStateSchema, CliMessagesResponseSchema, MetadataSchema, UserMessageSchema } from './types'
 import { RpcHandlerManager } from './rpc/RpcHandlerManager'
 import { registerCommonHandlers } from '../modules/common/registerCommonHandlers'
+import { cleanupUploadDir } from '../modules/common/handlers/uploads'
 import { TerminalManager } from '@/terminal/TerminalManager'
 import {
     TerminalClosePayloadSchema,
@@ -450,6 +451,7 @@ export class ApiSessionClient extends EventEmitter {
     }
 
     sendSessionDeath(): void {
+        void cleanupUploadDir(this.sessionId)
         this.socket.emit('session-end', { sid: this.sessionId, time: Date.now() })
     }