Ajout des notification + page employé (#6)

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## Description de la PR

## Modification du .env

## Check list

- [ ] Pas de régression
- [ ] TU/TI/TF rédigée
- [ ] TU/TI/TF OK
- [ ] CHANGELOG modifié

Reviewed-on: #6
Co-authored-by: tristan <tristan@yuno.malio.fr>
Co-committed-by: tristan <tristan@yuno.malio.fr>

frontend/services/employee-leave-summary.ts

@@ -0,0 +1,18 @@
+import type { EmployeeLeaveSummary } from './dto/employee-leave-summary'
+
+export const getEmployeeLeaveSummary = async (employeeId: number, year?: number) => {
+  const api = useApi()
+  const query: Record<string, string> = {}
+  if (year) query.year = String(year)
+
+  return api.get<EmployeeLeaveSummary>(`/employees/${employeeId}/leave-summary`, query, { toast: false })
+}
+
+export const updateFractionedDays = async (employeeId: number, fractionedDays: number, year?: number) => {
+  const api = useApi()
+  const body: Record<string, unknown> = { fractionedDays }
+  if (year) body.year = year
+
+  return api.patch(`/employees/${employeeId}/fractioned-days`, body)
+}
+