feat(FN-2615): merge fusion/fn-2615 (auto-resolved)

- fix(FN-2615): restore workspace lint and test stability

packages/dashboard/src/chat.ts

@@ -25,17 +25,14 @@ import { EventEmitter } from "node:events";
 import { join, resolve, relative } from "node:path";
 import { SessionEventBuffer } from "./sse-buffer.js";
 
-import {
-  createFnAgent as engineCreateFnAgent,
-  buildAgentChatPrompt as engineBuildAgentChatPrompt,
-} from "@fusion/engine";
+import * as engine from "@fusion/engine";
 
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 type AgentResult = any;
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
-let createFnAgent: any = engineCreateFnAgent;
+let createFnAgent: any = engine.createFnAgent;
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
-let buildAgentChatPromptFn: any = engineBuildAgentChatPrompt;
+let buildAgentChatPromptFn: any = "buildAgentChatPrompt" in engine ? engine.buildAgentChatPrompt : undefined;
 
 /**
  * Diagnostics logger for the chat module.
@@ -889,7 +886,7 @@ export function __setBuildAgentChatPrompt(mock: typeof buildAgentChatPromptFn):
 export function __resetChatState(): void {
   chatStreamManager.reset();
   rateLimits.clear();
-  buildAgentChatPromptFn = engineBuildAgentChatPrompt;
+  buildAgentChatPromptFn = "buildAgentChatPrompt" in engine ? engine.buildAgentChatPrompt : undefined;
 
   // Reset diagnostics logger to default
   __setChatDiagnostics(null);