Connect Spice Banker sealed battle spending and saved settlement

Prototype one through three own spice as a separate sealed battle commitment. Reserve funds alongside actual force support, add strength only for the surviving skilled leader, and settle once through existing versioned writes. Apply the documented card/core-rule interpretation: payment survives leader death or loss, except for the sole successful traitor caller. Keep printed disc strength and bounty unchanged. Normal income awaits its deferred-custody ruling; combined modules remain gated.

Validation: 54 focused tests; typecheck, lint, 4490 offline tests, production build and 43 HTTP tests passed. Independent rules, privacy, persistence and UI review completed. SQLite tests cover reserved-spice diversion, concurrent settlement, traitor waiver and legacy plans. Browser exercised a three-spice commitment, pending refresh, actual +3 strength and payment, and restored private cards and the next decision. Two genuine four-profile Basic/Advanced samples completed without rejected candidates but did not use Banker spending.

Following another reported outage, the server remained healthy. Preserved all 461 opening rooms and original seat/recovery rows (495 rooms after QA/HTTP). SQLite integrity and foreign keys passed. A fresh online backup captured all 495 rooms, and browser refresh restored the QA seat. No restart or reset was needed.

Verified source tree: 208bf9324ab994b5e59ed50d78998b4dbf8810b3b6799b1a577ef3b84479335f

game/leader-skill-combat.ts

@@ -24,7 +24,7 @@ export type BattleLeaderSkill = {
 };
 
 export type AppliedLeaderSkill = {
-  skill: DirectLeaderSkillId | 'planetologist' | 'mentat';
+  skill: DirectLeaderSkillId | 'planetologist' | 'mentat' | 'spice-banker';
   amount: 1 | 2 | 3;
   mode: 'normal' | 'skilled';
 };
@@ -165,9 +165,13 @@ export function leaderSkillBattleBonus(input: {
   weapon: Card | undefined;
   defense: Card | undefined;
   skilledLeaderSurvives: boolean;
+  bankerSpice?: number;
 }): LeaderSkillBattleBonus {
   if (!input.selectedLeader) return { bonus: 0, applied: [] };
   const applied: AppliedLeaderSkill[] = [];
+  if (input.bankerSpice && Number.isSafeInteger(input.bankerSpice) && input.bankerSpice >= 1 && input.bankerSpice <= 3 &&
+    input.selectedLeader.kind === 'disc' && usesSurvivingSkilledLeader(input.assignments, 'spice-banker', input.selectedLeader.id, input.skilledLeaderSurvives))
+    applied.push({ skill: 'spice-banker', amount: input.bankerSpice as 1 | 2 | 3, mode: 'skilled' });
   if (input.selectedLeader.kind === 'disc' && usesSurvivingSkilledLeader(
     input.assignments, 'mentat', input.selectedLeader.id, input.skilledLeaderSurvives,
   )) applied.push({ skill: 'mentat', amount: 2, mode: 'skilled' });