选择组的出口选择要走到落地:恰发一口,随放行一并确认

A6 的输出是**选择组**(negotiation: won / revise / lost),回传协议里本来就有
`selectedPorts`,human-tool 也接住了 —— 但落地那一步硬写 `selectedPorts: {}`,
选择从未抵达。结果:放行了、台账写了,却「发射输出口:(无)」,
G4 异或网关拿不到 outcome,整条流悄无声息地停住。

按 verdict 同样的路子把它串起来:人事件载荷 → 末步运行时 → 谱走完时报上去 →
落地收敛时照它发射。

gates: tsc / eslint / depcruise / 399 测试 全绿

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KeDBx2PHLavbURXB8LJJ7m

apps/api/src/modules/flow-engine/contract.ts

@@ -24,6 +24,8 @@ export type AdvanceOutcome = {
   readonly waitingFor?: { readonly kind: 'human' | 'event' | 'time'; readonly ref: string; readonly deadline: string };
   /** finished 时:末步验收工单的裁决决定终态 */
   readonly released?: boolean;
+  /** 选择组的出口选择:恰发一口,随放行一并确认 */
+  readonly selectedPorts?: Record<string, string>;
   readonly blockedReason?: string;
 };