feat(front) : logique Ajouter un bovin sur écran de saisie

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

frontend/pages/entry-exit/entry/[id].vue

@@ -181,8 +181,48 @@ const loadReception = async () => {
     resetForm()
 }
 
+const loadSavedBovines = async () => {
+    const response = await api.get<{ 'hydra:member'?: BovineData[] } | BovineData[]>(
+        `bovines?reception=${receptionId.value}`,
+        {},
+        { toast: false }
+    )
+    savedBovines.value = Array.isArray(response)
+        ? response
+        : (response['hydra:member'] ?? [])
+}
+
+const focusFirstField = () => {
+    const el = document.querySelector<HTMLInputElement>('form input[type="text"]')
+    el?.focus()
+}
+
 const addBovine = async () => {
-    // implémenté en Task 9
+    if (!isFormValid.value || isAdding.value) return
+
+    isAdding.value = true
+    try {
+        const payload = {
+            nationalNumber: form.nationalNumber.trim(),
+            receivedWeight: form.receivedWeight,
+            pricePerKg: form.pricePerKg,
+            arrivalDate: form.arrivalDate,
+            supplier: `/api/suppliers/${form.supplierId}`,
+            buildingCase: `/api/building_cases/${form.caseId}`,
+            reception: `/api/receptions/${receptionId.value}`
+        }
+
+        await api.post<BovineData>('bovines', payload, {
+            headers: { 'Content-Type': 'application/ld+json' }
+        })
+
+        await loadSavedBovines()
+        resetForm()
+        await nextTick()
+        focusFirstField()
+    } finally {
+        isAdding.value = false
+    }
 }
 
 onMounted(async () => {
@@ -191,5 +231,6 @@ onMounted(async () => {
         getBuildingList()
     ])
     await loadReception()
+    await loadSavedBovines()
 })
 </script>