Give the analytics overview a per-parent, per-year balance series

Each parent projection now carries one entry per calendar year from
birth to the fourth birthday: vacation earned, carried in, planned,
left, carried out and expiring under Semesterlagen's 20-day floor and
5-year carry-over, plus parental-leave days used and left at year end
with the age-4 clamp applied in the birthday year. The overview sums
them into per-year totals. Frontend types, mapper and fixtures follow.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XBRLomdLK9jF7wU7a8AA6H

frontend/tests/fixtures/analytics.ts

@@ -1,6 +1,64 @@
 /** Shared test fixtures — Dashboard analytics (`GET /api/analytics/overview`). */
 
-import type { Age4Projection, WorkspaceOverview } from '@/types'
+import type {
+  Age4Projection,
+  ParentalLeaveYearBalance,
+  ParentYearBalance,
+  VacationYearBalance,
+  WorkspaceOverview,
+  YearTotals,
+} from '@/types'
+
+export function makeVacationYearBalance(
+  overrides: Partial<VacationYearBalance> = {},
+): VacationYearBalance {
+  return {
+    year: 2025,
+    earned: 25,
+    isAssumed: true,
+    carriedIn: 0,
+    plannedUse: 0,
+    left: 25,
+    carriedOut: 5,
+    expiring: 0,
+    ...overrides,
+  }
+}
+
+export function makeParentalLeaveYearBalance(
+  overrides: Partial<ParentalLeaveYearBalance> = {},
+): ParentalLeaveYearBalance {
+  return {
+    year: 2025,
+    sjukpenningUsed: 0,
+    lagstaUsed: 0,
+    sjukpenningLeft: 390,
+    lagstaLeft: 90,
+    ...overrides,
+  }
+}
+
+export function makeParentYearBalance(
+  overrides: Partial<ParentYearBalance> = {},
+): ParentYearBalance {
+  return {
+    personalDataUuid: 'pd-a',
+    childId: 'child-1',
+    year: 2025,
+    vacation: makeVacationYearBalance(),
+    parentalLeave: makeParentalLeaveYearBalance(),
+    ...overrides,
+  }
+}
+
+export function makeYearTotals(overrides: Partial<YearTotals> = {}): YearTotals {
+  return {
+    year: 2025,
+    plLeft: 480,
+    vacationLeft: 25,
+    ...overrides,
+  }
+}
 
 export function makeAge4Projection(overrides: Partial<Age4Projection> = {}): Age4Projection {
   return {
@@ -15,6 +73,7 @@ export function makeAge4Projection(overrides: Partial<Age4Projection> = {}): Age
     savableAfterB4: 96,
     expiringAtB4: 60,
     savableCapAtB4: 96,
+    yearBalances: [],
     ...overrides,
   }
 }
@@ -27,6 +86,7 @@ export function makeWorkspaceOverview(overrides: Partial<WorkspaceOverview> = {}
     combinedDaysUsed: 30,
     combinedDaysLeft: 270,
     combinedExpiringAtB4: 100,
+    yearTotals: [],
     ...overrides,
   }
 }