perf: reduce dodo data loading requests

frontend/src/lib/mvp-utils.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from 'vitest'
-import { dateKey, moveDueDate } from './mvp-utils'
+import { dateKey, isTaskView, moveDueDate } from './mvp-utils'
 
 describe('MVP view utilities', () => {
   it('normalizes to UTC so stored due_at stays stable in every local timezone', () => {
@@ -8,4 +8,9 @@ describe('MVP view utilities', () => {
     const newly = moveDueDate(null, '2026-09-09')
     expect(newly).toBe('2026-09-09T09:00:00.000Z')
   })
+
+  it('identifies only task-backed views as task data loaders', () => {
+    expect(['tasks', 'today', 'upcoming'].filter(isTaskView)).toEqual(['tasks', 'today', 'upcoming'])
+    expect(['calendar', 'habits', 'settings', 'trash'].filter(isTaskView)).toEqual([])
+  })
 })

frontend/src/lib/mvp-utils.ts

@@ -39,3 +39,7 @@ export function mergePage<T>(page: T[] | { items?: T[]; next_cursor?: string | n
   if (Array.isArray(page)) return { items: page, nextCursor: null }
   return { items: page.items ?? [], nextCursor: page.next_cursor ?? null }
 }
+
+export function isTaskView(view: string) {
+  return view === 'tasks' || view === 'today' || view === 'upcoming'
+}