fix(consult): 窗口溢出重试保留预跑证据包，回填修复版本 SHA

frontend/tests/consultation-workflow-contract.test.ts

@@ -368,6 +368,9 @@ test("window calculation is precomputed on the agent context cache (BUG-957)", (
   assert.match(windowBranch, /precomputeWindowConsultation/);
   assert.match(windowBranch, /warmup:/);
   assert.match(windowBranch, /windowPrecomputedPacketMessage/);
+  assert.match(route, /let windowPacketMessage: string \| null = null/);
+  assert.match(route, /if \(windowPacketMessage\) \{/);
+  assert.match(route, /content: windowPacketMessage/);
   assert.doesNotMatch(windowBranch, /toolChoice:\s*"required"/);
   assert.doesNotMatch(natalBranch, /precomputeWindowConsultation/);
   assert.doesNotMatch(natalBranch, /warmup:/);