Extract shared types to src/types/dashboard.ts

Consolidate duplicated type definitions (User, Settings, Widget,
CalendarEvent, CalendarSource, NoteBoardItem, etc.) into a single
shared types file. Removes ~100 lines of duplicated type code across
page.tsx, settings/page.tsx, NoteWidget.tsx, and CalendarWidget.tsx.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/page.tsx

@@ -6,6 +6,7 @@ import { FormEvent, useEffect, useMemo, useRef, useState } from "react";
 import type { DashboardGridProps } from "@/components/DashboardGrid";
 import type { DashboardGridWidget, DashboardLayoutItem } from "@/lib/dashboard-layout";
 import { sortLayoutForPosition } from "@/lib/dashboard-layout";
+import type { User, Settings, DashboardTab, WidgetType, Widget, SearchProvider, CalendarEvent, CalendarSource, CalendarWidgetCalendarConfig, NoteBoardItem } from "@/types/dashboard";
 import CalculatorWidget from "@/components/CalculatorWidget";
 import CalendarWidget from "@/components/CalendarWidget";
 import ClockWidget from "@/components/ClockWidget";
@@ -25,95 +26,6 @@ const DashboardGrid = dynamic<DashboardGridProps>(() => import("@/components/Das
   )
 });
 
-type User = {
-  id: string;
-  email: string;
-  displayName: string | null;
-  role: "ADMIN" | "USER";
-};
-
-type Settings = {
-  id: string;
-  userId: string;
-  darkMode: boolean;
-  calendarIcsUrl: string | null;
-  calendarMaxEvents: number;
-  calendarLookaheadDays: number;
-  dashboardTitle: string;
-  dashboardSubtitle: string | null;
-  logoUrl: string | null;
-  backgroundImageUrl: string | null;
-  backgroundImageOpacity: number;
-  primaryColor: string;
-  secondaryColor: string;
-  customCss: string;
-};
-
-type DashboardTab = {
-  id: string;
-  userId: string;
-  title: string;
-  position: number;
-};
-
-type WidgetType = "favorites" | "note" | "search" | "calendar" | "calculator" | "clock" | "domain-check";
-
-type Widget = DashboardGridWidget & {
-  userId: string;
-  viewMode?: string;
-};
-
-type SearchProvider = {
-  id: string;
-  label: string;
-  urlTemplate: string;
-};
-
-type CalendarEvent = {
-  id: string;
-  title: string;
-  start: string;
-  end: string | null;
-  location: string | null;
-};
-
-type CalendarSourceType = "ICS" | "EXCHANGE_EWS";
-
-type CalendarSource = {
-  id: string;
-  userId: string;
-  type: CalendarSourceType;
-  name: string;
-  color: string;
-  nextEventsCount: number;
-  icsUrl: string | null;
-  exchangeEwsUrl: string | null;
-  exchangeMailbox: string | null;
-  exchangeUsername: string | null;
-  exchangeDomain: string | null;
-  passwordConfigured: boolean;
-};
-
-type CalendarWidgetCalendarConfig = {
-  sources: CalendarSource[];
-  selectedSourceIds: string[];
-  nextEventsCount: number;
-};
-
-type NoteBoardItem = {
-  id: string;
-  userId: string;
-  type: "note" | string;
-  title: string;
-  content: string;
-  x: number;
-  y: number;
-  w: number;
-  h: number;
-  createdAt: string;
-  updatedAt: string;
-};
-
 const searchProviders: SearchProvider[] = [
   {
     id: "google",

src/app/settings/page.tsx

@@ -1,41 +1,7 @@
 "use client";
 
 import { FormEvent, useEffect, useState } from "react";
-
-type Settings = {
-  id: string;
-  userId: string;
-  darkMode: boolean;
-  calendarIcsUrl: string | null;
-  calendarMaxEvents: number;
-  calendarLookaheadDays: number;
-  dashboardTitle: string;
-  dashboardSubtitle: string | null;
-  logoUrl: string | null;
-  faviconUrl: string | null;
-  backgroundImageUrl: string | null;
-  backgroundImageOpacity: number;
-  primaryColor: string;
-  secondaryColor: string;
-  customCss: string;
-};
-
-type CalendarSourceType = "ICS" | "EXCHANGE_EWS";
-
-type CalendarSource = {
-  id: string;
-  userId: string;
-  type: CalendarSourceType;
-  name: string;
-  color: string;
-  nextEventsCount: number;
-  icsUrl: string | null;
-  exchangeEwsUrl: string | null;
-  exchangeMailbox: string | null;
-  exchangeUsername: string | null;
-  exchangeDomain: string | null;
-  passwordConfigured: boolean;
-};
+import type { Settings, CalendarSource, CalendarSourceType } from "@/types/dashboard";
 
 type CalendarSourceDraft = {
   sourceId: string | null;

src/components/CalendarWidget.tsx

@@ -1,22 +1,7 @@
 "use client";
 
 import { useMemo, useState } from "react";
-
-type CalendarEvent = {
-  id: string;
-  title: string;
-  start: string;
-  end: string | null;
-  location: string | null;
-};
-
-type CalendarSource = {
-  id: string;
-  name: string;
-  color: string;
-  type: string;
-  passwordConfigured: boolean;
-};
+import type { CalendarEvent, CalendarSource } from "@/types/dashboard";
 
 type CalendarWidgetProps = {
   widgetId: string;

src/components/NoteWidget.tsx

@@ -2,20 +2,7 @@
 
 import type { ReactNode } from "react";
 import { useState } from "react";
-
-type NoteBoardItem = {
-  id: string;
-  userId: string;
-  type: "note" | string;
-  title: string;
-  content: string;
-  x: number;
-  y: number;
-  w: number;
-  h: number;
-  createdAt: string;
-  updatedAt: string;
-};
+import type { NoteBoardItem } from "@/types/dashboard";
 
 type NoteWidgetProps = {
   note: NoteBoardItem | null;

src/types/dashboard.ts

@@ -0,0 +1,91 @@
+import type { DashboardGridWidget } from "@/lib/dashboard-layout";
+
+export type User = {
+  id: string;
+  email: string;
+  displayName: string | null;
+  role: "ADMIN" | "USER";
+};
+
+export type Settings = {
+  id: string;
+  userId: string;
+  darkMode: boolean;
+  calendarIcsUrl: string | null;
+  calendarMaxEvents: number;
+  calendarLookaheadDays: number;
+  dashboardTitle: string;
+  dashboardSubtitle: string | null;
+  logoUrl: string | null;
+  faviconUrl: string | null;
+  backgroundImageUrl: string | null;
+  backgroundImageOpacity: number;
+  primaryColor: string;
+  secondaryColor: string;
+  customCss: string;
+};
+
+export type DashboardTab = {
+  id: string;
+  userId: string;
+  title: string;
+  position: number;
+};
+
+export type WidgetType = "favorites" | "note" | "search" | "calendar" | "calculator" | "clock" | "domain-check";
+
+export type Widget = DashboardGridWidget & {
+  userId: string;
+  viewMode?: string;
+};
+
+export type SearchProvider = {
+  id: string;
+  label: string;
+  urlTemplate: string;
+};
+
+export type CalendarEvent = {
+  id: string;
+  title: string;
+  start: string;
+  end: string | null;
+  location: string | null;
+};
+
+export type CalendarSourceType = "ICS" | "EXCHANGE_EWS";
+
+export type CalendarSource = {
+  id: string;
+  userId: string;
+  type: CalendarSourceType;
+  name: string;
+  color: string;
+  nextEventsCount: number;
+  icsUrl: string | null;
+  exchangeEwsUrl: string | null;
+  exchangeMailbox: string | null;
+  exchangeUsername: string | null;
+  exchangeDomain: string | null;
+  passwordConfigured: boolean;
+};
+
+export type CalendarWidgetCalendarConfig = {
+  sources: CalendarSource[];
+  selectedSourceIds: string[];
+  nextEventsCount: number;
+};
+
+export type NoteBoardItem = {
+  id: string;
+  userId: string;
+  type: "note" | string;
+  title: string;
+  content: string;
+  x: number;
+  y: number;
+  w: number;
+  h: number;
+  createdAt: string;
+  updatedAt: string;
+};