feat: locale-aware date format in email list with preset picker #331

stores/settings-store.ts

@@ -31,7 +31,7 @@ export type ListDensity = Density;
 export type DeleteAction = 'trash' | 'trash-and-read' | 'permanent';
 export type ReplyMode = 'reply' | 'replyAll';
 export type SignaturePosition = 'above_quote' | 'below_quote';
-export type DateFormat = 'regional' | 'iso' | 'custom';
+export type DateFormat = 'smart' | 'relative' | 'full';
 export type TimeFormat = '12h' | '24h';
 export type FirstDayOfWeek = 0 | 1; // 0 = Sunday, 1 = Monday
 export type ExternalContentPolicy = 'ask' | 'block' | 'allow';
@@ -300,7 +300,7 @@ const DEFAULT_SETTINGS = {
   animationsEnabled: true,
 
   // Language & Region
-  dateFormat: 'regional' as DateFormat,
+  dateFormat: 'smart' as DateFormat,
   timeFormat: '24h' as TimeFormat,
   firstDayOfWeek: 1 as FirstDayOfWeek, // Monday
 
@@ -760,7 +760,7 @@ export const useSettingsStore = create<SettingsState>()(
     }),
     {
       name: 'settings-storage',
-      version: 3,
+      version: 4,
       migrate: (persisted, version) => {
         const state = persisted as Record<string, unknown>;
         if (version < 2 && state.listDensity) {
@@ -771,6 +771,12 @@ export const useSettingsStore = create<SettingsState>()(
           state.protocolOpenMode = state.protocolMailtoOpenMode;
         }
         delete state.protocolMailtoOpenMode;
+        // v4: `dateFormat` was repurposed from 'regional'|'iso'|'custom' to
+        // 'smart'|'relative'|'full'. The old setting was never read anywhere,
+        // so every persisted value maps to the new default.
+        if (version < 4) {
+          state.dateFormat = 'smart';
+        }
         return state as unknown as SettingsState;
       },
       onRehydrateStorage: () => {