feat(machine) : single save button + link versioning display

- Replace auto-save-on-blur with single "Enregistrer" button
- Add Cancel button that resets local state
- Expose saveFieldDefinitions via defineExpose on MachineInfoCard
- Remove standalone save button from MachineCustomFieldDefEditor
- Add saveAllMachineCustomFields batch method
- Add submitEdition/cancelEdition/saving/canSubmit to orchestrator
- Show diff summary badges in version list entries
- Show link changes in restore modal description

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/composables/useMachineDetailCustomFields.ts

@@ -376,6 +376,58 @@ export function useMachineDetailCustomFields(deps: MachineDetailCustomFieldsDeps
     }
   }
 
+  const saveAllMachineCustomFields = async () => {
+    if (!machine.value) return
+
+    const fields = Array.isArray(machineCustomFields.value) ? machineCustomFields.value : []
+    const fieldsToSave = fields.filter(
+      (field) => field.value !== undefined && field.value !== null && String(field.value).trim() !== '',
+    )
+
+    for (const field of fieldsToSave) {
+      const { id: customFieldId, customFieldValueId } = field
+
+      try {
+        if (customFieldValueId) {
+          await updateCustomFieldValueApi(customFieldValueId as string, {
+            value: field.value ?? '',
+          } as any)
+        } else if (customFieldId) {
+          const result: any = await upsertCustomFieldValue(
+            customFieldId as string,
+            'machine',
+            machine.value.id as string,
+            field.value ?? '',
+          )
+          if (result.success) {
+            const createdValue = result.data as AnyRecord
+            if (createdValue?.id) {
+              field.customFieldValueId = createdValue.id
+              if (!createdValue.customField) {
+                createdValue.customField = {
+                  id: customFieldId,
+                  name: field.name,
+                  type: field.type,
+                  required: field.required,
+                  options: field.options,
+                }
+              }
+              const existingValues = Array.isArray(machine.value.customFieldValues)
+                ? (machine.value.customFieldValues as AnyRecord[]).filter(
+                    (item) => item.id !== createdValue.id,
+                  )
+                : []
+              machine.value.customFieldValues = [...existingValues, createdValue]
+            }
+          }
+        }
+      } catch (error) {
+        console.error('Erreur lors de la sauvegarde du champ personnalisé:', error)
+        throw error
+      }
+    }
+  }
+
   return {
     // State
     machineCustomFields,
@@ -392,5 +444,6 @@ export function useMachineDetailCustomFields(deps: MachineDetailCustomFieldsDeps
     setMachineCustomFieldValue,
     updateMachineCustomField,
     updatePieceCustomField,
+    saveAllMachineCustomFields,
   }
 }