fix: date year picker (#84)

| Numéro du ticket | Titre du ticket |
|------------------|-----------------|
|                  |                 |

## Description de la PR

## Modification du .env

## Check list

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

---------

Co-authored-by: admin malio <malio@yuno.malio.fr>
Co-authored-by: THOLOT DECHENE Matthieu <matthieu@yuno.malio.fr>
Co-authored-by: matthieu <matthieu@yuno.malio.fr>
Reviewed-on: #84
Co-authored-by: tristan <tristan@yuno.malio.fr>
Co-committed-by: tristan <tristan@yuno.malio.fr>

app/components/malio/date/internal/MonthPicker.test.ts

@@ -0,0 +1,33 @@
+import { describe, expect, it } from 'vitest'
+import { mount } from '@vue/test-utils'
+import MonthPicker from './MonthPicker.vue'
+
+const mountPicker = (props: { currentYear: number, selectedMonth?: number, min?: string, max?: string }) =>
+  mount(MonthPicker, { props })
+
+describe('MalioDateMonthPicker', () => {
+  it('renders 12 months', () => {
+    const wrapper = mountPicker({ currentYear: 2026 })
+    expect(wrapper.findAll('[data-test="month"]')).toHaveLength(12)
+  })
+
+  it('emits select with the clicked month index', async () => {
+    const wrapper = mountPicker({ currentYear: 2026 })
+    await wrapper.get('[data-test="month"][data-month="0"]').trigger('click')
+    expect(wrapper.emitted('select')?.[0]).toEqual([0])
+  })
+
+  it('disables months before min in the current year and does not emit', async () => {
+    const wrapper = mountPicker({ currentYear: 2026, min: '2026-05-01' })
+    const april = wrapper.get('[data-test="month"][data-month="3"]')
+    expect(april.attributes('disabled')).toBeDefined()
+    await april.trigger('click')
+    expect(wrapper.emitted('select')).toBeUndefined()
+  })
+
+  it('disables months after max in the current year', () => {
+    const wrapper = mountPicker({ currentYear: 2026, max: '2026-05-31' })
+    expect(wrapper.get('[data-test="month"][data-month="5"]').attributes('disabled')).toBeDefined()
+    expect(wrapper.get('[data-test="month"][data-month="4"]').attributes('disabled')).toBeUndefined()
+  })
+})