feat: ConnectAI structural hardening and retrieval precision improvements

tests/agentEngine.test.ts

@@ -21,6 +21,7 @@ import {
 } from '../src/lib/engine';
 import * as fs from 'fs';
 import * as path from 'path';
+import { createHash } from 'crypto';
 
 // ─── Setup ───
 const getBaseDir = () => {
@@ -622,12 +623,12 @@ describe('Concurrency & Stress Tests', () => {
         
         // resilientExecute의 fallback 로직이 allowFallback 옵션에 반응하는지 테스트
         const options: AgentExecuteOptions = {
-            config: { allowFallback: true },
+            config: { allowFallback: true, isSamePrompt: true },
             priorResults: { previousValidData: expectedFallback }
         };
 
         const result = await (engine as any).resilientExecute(
-            new MissionState('fallback_test'),
+            new MissionState('fallback_test', createHash('sha256').update(testPrompt).digest('hex').slice(0, 16)),
             failingAgent,
             'FailingAgent',
             testPrompt,