[#SIRH-14] Ajouter un onglet Observation sur la fiche employé (#8)

| Numéro du ticket | Titre du ticket |
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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: #8
Co-authored-by: tristan <tristan@yuno.malio.fr>
Co-committed-by: tristan <tristan@yuno.malio.fr>

frontend/services/observations.ts

@@ -0,0 +1,50 @@
+import type { Observation } from './dto/observation'
+import { extractItems } from '~/utils/api'
+
+export const listObservations = async (employeeId: number) => {
+  const api = useApi()
+  const data = await api.get<Observation[] | { 'hydra:member'?: Observation[] }>(
+    '/observations',
+    { employee: `/api/employees/${employeeId}` },
+    { toast: false }
+  )
+  return extractItems<Observation>(data)
+}
+
+export const createObservation = async (data: {
+  employeeId: number
+  month: string
+  content: string
+}) => {
+  const api = useApi()
+  return api.post<Observation>('/observations', {
+    employee: `/api/employees/${data.employeeId}`,
+    month: data.month,
+    content: data.content
+  }, {
+    toastSuccessKey: 'success.observation.create',
+    toastErrorKey: 'errors.observation.create'
+  })
+}
+
+export const updateObservation = async (id: number, data: {
+  month: string
+  content: string
+}) => {
+  const api = useApi()
+  return api.patch<Observation>(`/observations/${id}`, {
+    month: data.month,
+    content: data.content
+  }, {
+    toastSuccessKey: 'success.observation.update',
+    toastErrorKey: 'errors.observation.update'
+  })
+}
+
+export const deleteObservation = async (id: number) => {
+  const api = useApi()
+  return api.delete(`/observations/${id}`, {}, {
+    toastSuccessKey: 'success.observation.delete',
+    toastErrorKey: 'errors.observation.delete'
+  })
+}