fix(wizard): avoid rerunning completed setup steps (#692)

packages/mosaic/src/wizard.ts

@@ -126,6 +126,11 @@ type MenuChoice =
   | 'advanced'
   | 'finish';
 
+function menuSectionKey(section: MenuChoice): MenuSection | null {
+  if (section === 'quick-start' || section === 'finish') return null;
+  return section === 'gateway-config' ? 'gateway' : section;
+}
+
 function menuLabel(section: MenuChoice, completed: Set<MenuSection>): string {
   const labels: Record<MenuChoice, string> = {
     'quick-start': 'Quick Start',
@@ -137,14 +142,24 @@ function menuLabel(section: MenuChoice, completed: Set<MenuSection>): string {
     finish: 'Finish & Apply',
   };
   const base = labels[section];
-  const sectionKey: MenuSection =
-    section === 'gateway-config' ? 'gateway' : (section as MenuSection);
-  if (completed.has(sectionKey)) {
+  const sectionKey = menuSectionKey(section);
+  if (sectionKey && completed.has(sectionKey)) {
     return `${base} [done]`;
   }
   return base;
 }
 
+function skipCompletedMenuChoice(
+  prompter: WizardPrompter,
+  completed: Set<MenuSection>,
+  choice: MenuChoice,
+): boolean {
+  const sectionKey = menuSectionKey(choice);
+  if (!sectionKey || !completed.has(sectionKey)) return false;
+  prompter.log(`${menuLabel(choice, completed)} is already complete; skipping.`);
+  return true;
+}
+
 async function runMenuLoop(
   prompter: WizardPrompter,
   state: WizardState,
@@ -201,21 +216,25 @@ async function runMenuLoop(
         return; // Quick start is a complete flow — exit menu
 
       case 'providers':
+        if (skipCompletedMenuChoice(prompter, completed, choice)) break;
         await providerSetupStage(prompter, state);
         completed.add('providers');
         break;
 
       case 'identity':
+        if (skipCompletedMenuChoice(prompter, completed, choice)) break;
         await agentIntentStage(prompter, state);
         completed.add('identity');
         break;
 
       case 'skills':
+        if (skipCompletedMenuChoice(prompter, completed, choice)) break;
         await skillsSelectStage(prompter, state);
         completed.add('skills');
         break;
 
       case 'gateway-config':
+        if (skipCompletedMenuChoice(prompter, completed, choice)) break;
         // Gateway config is handled during Finish — mark as "configured"
         // after user reviews settings.
         await runGatewaySubMenu(prompter, state, options);
@@ -223,6 +242,7 @@ async function runMenuLoop(
         break;
 
       case 'advanced':
+        if (skipCompletedMenuChoice(prompter, completed, choice)) break;
         await runAdvancedSubMenu(prompter, state);
         completed.add('advanced');
         break;
@@ -325,7 +345,7 @@ async function runFinishPath(
         portOverride: options.gatewayPortOverride,
         skipInstall: options.skipGatewayNpmInstall,
         providerKey: state.providerKey,
-        providerType: state.providerType ?? 'none',
+        providerType: state.providerType,
       });
 
       if (configResult.ready && configResult.host && configResult.port) {
@@ -396,7 +416,7 @@ async function runHeadlessPath(
         portOverride: options.gatewayPortOverride,
         skipInstall: options.skipGatewayNpmInstall,
         providerKey: state.providerKey,
-        providerType: state.providerType ?? 'none',
+        providerType: state.providerType,
       });
 
       if (!configResult.ready || !configResult.host || !configResult.port) {