feat: rework first run as a setup checklist and split settings into tabs

web/js/store.js

@@ -164,6 +164,26 @@ export function setLeaveOnServer(value) {
   update(state => { state.leaveOnServer = value; });
 }
 
+// The user's own word that the master is written down somewhere else. Nothing
+// can verify it, so it only drives the setup checklist — never a guard.
+export function masterSaved() {
+  return load().masterSaved ?? false;
+}
+
+export function setMasterSaved(value) {
+  update(state => { state.masterSaved = value; });
+}
+
+// Whether the setup checklist was dismissed. Remaining steps stay reachable
+// from settings, so hiding it is a preference, not a loss.
+export function setupDismissed() {
+  return load().setupDismissed ?? false;
+}
+
+export function setSetupDismissed(value) {
+  update(state => { state.setupDismissed = value; });
+}
+
 export function cursor() {
   const state = load();
   const afterId = state.afterId;