fix(consult): race a bounded VedAstro gateway on the chat path

Foreground still skips the heavy overview stack, but overlaps a timed
gateway so official evidence can merge when it finishes in budget.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/lib/consultation-technique-audit.ts

@@ -67,6 +67,8 @@ const NOTE_LABELS: Readonly<Record<string, string>> = {
   official_raw_archive_not_auditable_for_this_run: "官方原始档案本轮不可审计",
   official_raw_archive_is_auditable: "官方原始档案可审计",
   official_cloud_evidence_available: "官方云证据可用",
+  foreground_optional_evidence_timeout: "前台官方云证据超时，本轮未赶上",
+  gateway_invocation_error: "官方云网关调用失败",
   claims_capped_until_pyjhora_jhora_jyotishganit_are_invoked_for_this_run: "结论上限受外部引擎调用限制",
   three_engine_runtime_closure_available: "三引擎运行时已闭环",
   complete_packet_required_for_high_confidence: "高置信度需完整证据包",