# MalioTimePicker (sélecteur d'heure molette) — Implementation Plan

> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.

**Goal:** Construire `<MalioTimePicker>`, un sélecteur d'heure à molettes style iOS (champ + popover), et rebrancher `MalioDateTime` dessus à la place de l'`<input type="time">` natif.

**Architecture :** Une brique interne testable `useInfiniteWheel` (math de molette infinie en scroll-snap) + `timeFormat` (parse/format `"HH:MM"`). Deux composants internes — `TimeWheel` (une colonne infinie) et `TimeWheels` (2 colonnes + bande centrale, `v-model "HH:MM"`) — réutilisés à la fois par le composant public `TimePicker` (champ + popover) et par `DateTime`.

**Tech Stack :** Nuxt 4 layer, Vue 3 `<script setup lang="ts">`, Tailwind (palette `m-*`), `tailwind-merge`, `@iconify/vue`, Vitest + `@vue/test-utils` (jsdom).

**Conventions de commit :** un hook `commit-msg` (copié depuis `commit-msg` à la racine via `make copy-git-hook`) impose le format **`<type>(<scope minuscule>) : <message>`** — espace AVANT le `:`, type minuscule parmi `build|chore|ci|docs|feat|fix|perf|refactor|revert|style|test`, scope optionnel `[a-z0-9._-]+` (donc **pas de majuscules** : `MUI-39` interdit en scope). Utiliser le scope du dossier (`time`, `date`) et mettre la réf ticket dans le message. Exemples : `feat(time) : ajoute timeFormat (MUI-39)`. ⚠️ Les libellés `[#MUI-39] …` dans les commits ci-dessous sont **descriptifs** : les traduire en format conventionnel à l'exécution.

Le hook `pre-commit` lance `make pre-commit` = `lint` + **toute la suite de tests**, qui est **flaky** (timeouts intermittents dans des fichiers SANS rapport : Accordion, ButtonIcon, InputTextArea, SiteSelector, Date, InputRichText). Si le commit échoue uniquement à cause de ces tests flaky non liés : relancer 1×, sinon `--no-verify` (toléré, cf. mémo). **Ne jamais** utiliser `--no-verify` pour masquer un échec dans un fichier que la tâche vient de créer/modifier, ni un message de commit non conforme.

**Commandes utiles :**
- Test ciblé : `npx vitest run <chemin>`
- Toute la suite : `npm run test`
- Lint : `npm run lint`

---

## Note sur jsdom et le scroll

jsdom ne simule **pas** le scroll-snap ni le scroll réel (`scrollTo` est un no-op, `scrollTop` est une propriété assignable mais aucun évènement `scroll` n'est émis spontanément). En conséquence :
- Toute la **math** vit dans des fonctions pures (`valueIndexFromScroll`, `scrollTopForValueIndex`, `loopCorrection`) testées exhaustivement.
- Les comportements **clic / clavier / émission** sont testés au niveau composant.
- Le ressenti molette (inertie, snap pixel) se valide **manuellement dans le playground**.

---

## Task 1 : composable `timeFormat`

**Files:**
- Create: `app/components/malio/time/composables/timeFormat.ts`
- Test: `app/components/malio/time/composables/timeFormat.test.ts`

- [ ] **Step 1 : Écrire le test qui échoue**

`app/components/malio/time/composables/timeFormat.test.ts` :
```ts
import {describe, expect, it} from 'vitest'
import {clampHours, clampMinutes, formatTime, padSegment, parseTime} from './timeFormat'

describe('timeFormat', () => {
  it('parse une chaîne HH:MM valide', () => {
    expect(parseTime('09:05')).toEqual({hours: 9, minutes: 5})
  })

  it('renvoie null pour vide ou invalide', () => {
    expect(parseTime('')).toBeNull()
    expect(parseTime(null)).toBeNull()
    expect(parseTime('abc')).toBeNull()
    expect(parseTime('12')).toBeNull()
  })

  it('clamp les valeurs hors bornes au parsing', () => {
    expect(parseTime('99:88')).toEqual({hours: 23, minutes: 59})
  })

  it('formate avec zéro-padding', () => {
    expect(formatTime(9, 5)).toBe('09:05')
    expect(formatTime(0, 0)).toBe('00:00')
  })

  it('clamp et pad les helpers', () => {
    expect(clampHours(30)).toBe(23)
    expect(clampHours(-2)).toBe(0)
    expect(clampMinutes(75)).toBe(59)
    expect(padSegment(7)).toBe('07')
  })
})
```

- [ ] **Step 2 : Lancer le test, vérifier l'échec**

Run: `npx vitest run app/components/malio/time/composables/timeFormat.test.ts`
Expected: FAIL — `Failed to resolve import "./timeFormat"`.

- [ ] **Step 3 : Implémenter**

`app/components/malio/time/composables/timeFormat.ts` :
```ts
export interface TimeParts {
  hours: number
  minutes: number
}

export function clampHours(value: number): number {
  if (Number.isNaN(value)) return 0
  return Math.min(23, Math.max(0, Math.trunc(value)))
}

export function clampMinutes(value: number): number {
  if (Number.isNaN(value)) return 0
  return Math.min(59, Math.max(0, Math.trunc(value)))
}

export function padSegment(value: number): string {
  return value.toString().padStart(2, '0')
}

export function parseTime(value: string | null | undefined): TimeParts | null {
  if (!value) return null
  const match = /^(\d{1,2}):(\d{1,2})$/.exec(value.trim())
  if (!match) return null
  return {
    hours: clampHours(Number.parseInt(match[1], 10)),
    minutes: clampMinutes(Number.parseInt(match[2], 10)),
  }
}

export function formatTime(hours: number, minutes: number): string {
  return `${padSegment(clampHours(hours))}:${padSegment(clampMinutes(minutes))}`
}
```

- [ ] **Step 4 : Lancer le test, vérifier le succès**

Run: `npx vitest run app/components/malio/time/composables/timeFormat.test.ts`
Expected: PASS (5 tests).

- [ ] **Step 5 : Commit**

```bash
git add app/components/malio/time/composables/timeFormat.ts app/components/malio/time/composables/timeFormat.test.ts
git commit -m "[#MUI-39] timeFormat : parse/format HH:MM pour le sélecteur d'heure"
```

---

## Task 2 : math pure de `useInfiniteWheel`

Les 3 fonctions pures qui pilotent la molette infinie. Modèle : `VISIBLE_ROWS = 5` lignes visibles, item de hauteur fixe `itemHeight`, ligne centrale à l'index `CENTER_OFFSET = 2`. Le buffer DOM est composé de **3 copies** de la liste de valeurs ; on maintient l'index centré dans la copie du milieu `[length, 2*length)`.

**Files:**
- Create: `app/components/malio/time/composables/useInfiniteWheel.ts`
- Test: `app/components/malio/time/composables/useInfiniteWheel.test.ts`

- [ ] **Step 1 : Écrire le test qui échoue**

`app/components/malio/time/composables/useInfiniteWheel.test.ts` :
```ts
import {describe, expect, it} from 'vitest'
import {
  CENTER_OFFSET,
  VISIBLE_ROWS,
  loopCorrection,
  scrollTopForValueIndex,
  valueIndexFromScroll,
} from './useInfiniteWheel'

const H = 40 // itemHeight
const LEN = 24 // ex. heures

describe('useInfiniteWheel — math pure', () => {
  it('expose 5 lignes visibles et un offset central de 2', () => {
    expect(VISIBLE_ROWS).toBe(5)
    expect(CENTER_OFFSET).toBe(2)
  })

  it('scrollTopForValueIndex et valueIndexFromScroll font un aller-retour', () => {
    for (const index of [0, 1, 9, 23]) {
      const top = scrollTopForValueIndex(index, H, LEN)
      expect(valueIndexFromScroll(top, H, LEN)).toBe(index)
    }
  })

  it('valueIndexFromScroll boucle en modulo', () => {
    const top = scrollTopForValueIndex(0, H, LEN)
    // un bloc complet plus bas = même valeur logique
    expect(valueIndexFromScroll(top + LEN * H, H, LEN)).toBe(0)
  })

  it('loopCorrection laisse le scroll de la copie du milieu inchangé', () => {
    const top = scrollTopForValueIndex(12, H, LEN)
    expect(loopCorrection(top, H, LEN)).toBe(top)
  })

  it('loopCorrection ramène vers le milieu quand on dérive vers le haut', () => {
    // index centré flat < length → on ajoute un bloc
    const drifted = scrollTopForValueIndex(0, H, LEN) - LEN * H
    expect(loopCorrection(drifted, H, LEN)).toBe(drifted + LEN * H)
  })

  it('loopCorrection ramène vers le milieu quand on dérive vers le bas', () => {
    const drifted = scrollTopForValueIndex(0, H, LEN) + LEN * H
    expect(loopCorrection(drifted, H, LEN)).toBe(drifted - LEN * H)
  })
})
```

- [ ] **Step 2 : Lancer le test, vérifier l'échec**

Run: `npx vitest run app/components/malio/time/composables/useInfiniteWheel.test.ts`
Expected: FAIL — import non résolu.

- [ ] **Step 3 : Implémenter les fonctions pures**

`app/components/malio/time/composables/useInfiniteWheel.ts` (partie 1 — la math ; le composable sera ajouté en Task 3) :
```ts
export const VISIBLE_ROWS = 5
export const CENTER_OFFSET = (VISIBLE_ROWS - 1) / 2 // 2

/** Index de valeur logique (0..length-1) centré pour un scrollTop donné. */
export function valueIndexFromScroll(scrollTop: number, itemHeight: number, length: number): number {
  const flat = Math.round(scrollTop / itemHeight) + CENTER_OFFSET
  return ((flat % length) + length) % length
}

/** scrollTop qui centre l'index donné dans la copie du milieu (buffer à 3 copies). */
export function scrollTopForValueIndex(valueIndex: number, itemHeight: number, length: number): number {
  const flat = length + valueIndex - CENTER_OFFSET
  return flat * itemHeight
}

/** Recentre le scrollTop dans la copie du milieu [length, 2*length) si on a dérivé. */
export function loopCorrection(scrollTop: number, itemHeight: number, length: number): number {
  const block = length * itemHeight
  const centeredFlat = Math.round(scrollTop / itemHeight) + CENTER_OFFSET
  if (centeredFlat < length) return scrollTop + block
  if (centeredFlat >= 2 * length) return scrollTop - block
  return scrollTop
}
```

- [ ] **Step 4 : Lancer le test, vérifier le succès**

Run: `npx vitest run app/components/malio/time/composables/useInfiniteWheel.test.ts`
Expected: PASS (6 tests).

- [ ] **Step 5 : Commit**

```bash
git add app/components/malio/time/composables/useInfiniteWheel.ts app/components/malio/time/composables/useInfiniteWheel.test.ts
git commit -m "[#MUI-39] useInfiniteWheel : math de molette infinie (scroll-snap)"
```

---

## Task 3 : composable `useInfiniteWheel` (wiring DOM)

Ajoute le composable Vue qui câble la math aux évènements scroll/clavier. On le teste avec un faux élément (jsdom n'émet pas de scroll, mais `step`/`onKeydown` sont déterministes).

**Files:**
- Modify: `app/components/malio/time/composables/useInfiniteWheel.ts` (ajout en fin de fichier)
- Modify: `app/components/malio/time/composables/useInfiniteWheel.test.ts` (ajout d'un `describe`)

- [ ] **Step 1 : Écrire le test qui échoue**

Ajouter à `useInfiniteWheel.test.ts` :
```ts
import {nextTick, ref} from 'vue'
import {mount} from '@vue/test-utils'
import {defineComponent} from 'vue'
import {useInfiniteWheel} from './useInfiniteWheel'

function mountWheelHarness(initialIndex: number, onChange: (i: number) => void) {
  let api!: ReturnType<typeof useInfiniteWheel>
  const Harness = defineComponent({
    setup() {
      const container = ref<HTMLElement | null>(null)
      api = useInfiniteWheel(container, {
        length: 24,
        itemHeight: 40,
        initialIndex: () => initialIndex,
        onChange,
      })
      return {container}
    },
    template: '<div ref="container" style="height:200px;overflow:auto"><div style="height:2880px" /></div>',
  })
  const wrapper = mount(Harness, {attachTo: document.body})
  return {wrapper, api: () => api}
}

describe('useInfiniteWheel — composable', () => {
  it('step(+1) émet l\'index suivant', async () => {
    const changes: number[] = []
    const {api} = mountWheelHarness(9, (i) => changes.push(i))
    await nextTick()
    api().step(1)
    expect(changes.at(-1)).toBe(10)
  })

  it('step boucle de 23 à 0', async () => {
    const changes: number[] = []
    const {api} = mountWheelHarness(23, (i) => changes.push(i))
    await nextTick()
    api().step(1)
    expect(changes.at(-1)).toBe(0)
  })

  it('onKeydown ArrowUp décrémente (avec wrap)', async () => {
    const changes: number[] = []
    const {api} = mountWheelHarness(0, (i) => changes.push(i))
    await nextTick()
    api().onKeydown(new KeyboardEvent('keydown', {key: 'ArrowUp'}))
    expect(changes.at(-1)).toBe(23)
  })
})
```

- [ ] **Step 2 : Lancer le test, vérifier l'échec**

Run: `npx vitest run app/components/malio/time/composables/useInfiniteWheel.test.ts`
Expected: FAIL — `useInfiniteWheel is not exported` / not a function.

- [ ] **Step 3 : Implémenter le composable**

Ajouter à la fin de `app/components/malio/time/composables/useInfiniteWheel.ts` :
```ts
import {onBeforeUnmount, onMounted, ref, type Ref} from 'vue'

export interface UseInfiniteWheelOptions {
  length: number
  itemHeight: number
  initialIndex: () => number
  onChange: (index: number) => void
}

export function useInfiniteWheel(
  containerRef: Ref<HTMLElement | null>,
  options: UseInfiniteWheelOptions,
) {
  const centeredIndex = ref(options.initialIndex())
  let programmatic = false
  let scrollEndTimer: ReturnType<typeof setTimeout> | null = null

  function readCentered() {
    const el = containerRef.value
    if (!el) return
    centeredIndex.value = valueIndexFromScroll(el.scrollTop, options.itemHeight, options.length)
  }

  function settle() {
    const el = containerRef.value
    if (!el) return
    const corrected = loopCorrection(el.scrollTop, options.itemHeight, options.length)
    if (corrected !== el.scrollTop) {
      programmatic = true
      el.scrollTop = corrected
    }
    readCentered()
    options.onChange(centeredIndex.value)
  }

  function onScroll() {
    if (programmatic) {
      programmatic = false
      return
    }
    readCentered()
    if (scrollEndTimer) clearTimeout(scrollEndTimer)
    scrollEndTimer = setTimeout(settle, 120)
  }

  function scrollToIndex(index: number, smooth = true) {
    const el = containerRef.value
    centeredIndex.value = index
    if (el) {
      programmatic = true
      el.scrollTo({
        top: scrollTopForValueIndex(index, options.itemHeight, options.length),
        behavior: smooth ? 'smooth' : 'auto',
      })
    }
    options.onChange(index)
  }

  function step(delta: number) {
    const next = (((centeredIndex.value + delta) % options.length) + options.length) % options.length
    scrollToIndex(next)
  }

  function onKeydown(event: KeyboardEvent) {
    if (event.key === 'ArrowUp') {
      event.preventDefault()
      step(-1)
    }
    else if (event.key === 'ArrowDown') {
      event.preventDefault()
      step(1)
    }
  }

  onMounted(() => {
    const el = containerRef.value
    if (!el) return
    el.addEventListener('scroll', onScroll, {passive: true})
    programmatic = true
    el.scrollTop = scrollTopForValueIndex(options.initialIndex(), options.itemHeight, options.length)
  })

  onBeforeUnmount(() => {
    containerRef.value?.removeEventListener('scroll', onScroll)
    if (scrollEndTimer) clearTimeout(scrollEndTimer)
  })

  return {centeredIndex, scrollToIndex, step, onKeydown}
}
```

- [ ] **Step 4 : Lancer le test, vérifier le succès**

Run: `npx vitest run app/components/malio/time/composables/useInfiniteWheel.test.ts`
Expected: PASS (9 tests au total).

- [ ] **Step 5 : Commit**

```bash
git add app/components/malio/time/composables/useInfiniteWheel.ts app/components/malio/time/composables/useInfiniteWheel.test.ts
git commit -m "[#MUI-39] useInfiniteWheel : câblage scroll/clavier de la molette"
```

---

## Task 4 : composant `TimeWheel` (une colonne)

**Files:**
- Create: `app/components/malio/time/internal/TimeWheel.vue`
- Test: `app/components/malio/time/internal/TimeWheel.test.ts`

- [ ] **Step 1 : Écrire le test qui échoue**

`app/components/malio/time/internal/TimeWheel.test.ts` :
```ts
import {describe, expect, it} from 'vitest'
import {mount} from '@vue/test-utils'
import TimeWheel from './TimeWheel.vue'

const HOURS = Array.from({length: 24}, (_, i) => i)

const mountWheel = (modelValue = 9) =>
  mount(TimeWheel, {
    props: {modelValue, values: HOURS, ariaLabel: 'Heures'},
    attachTo: document.body,
  })

describe('MalioTimeWheel', () => {
  it('expose le rôle spinbutton et les attributs aria', () => {
    const wrapper = mountWheel(9)
    const el = wrapper.get('[role="spinbutton"]')
    expect(el.attributes('aria-label')).toBe('Heures')
    expect(el.attributes('aria-valuenow')).toBe('9')
    expect(el.attributes('aria-valuemin')).toBe('0')
    expect(el.attributes('aria-valuemax')).toBe('23')
    expect(el.attributes('aria-valuetext')).toBe('09')
  })

  it('rend 3 copies des valeurs (buffer infini)', () => {
    const wrapper = mountWheel()
    expect(wrapper.findAll('[data-test="wheel-item"]')).toHaveLength(24 * 3)
  })

  it('émet la nouvelle valeur au clavier ArrowDown', async () => {
    const wrapper = mountWheel(9)
    await wrapper.get('[role="spinbutton"]').trigger('keydown', {key: 'ArrowDown'})
    expect(wrapper.emitted('update:modelValue')?.at(-1)).toEqual([10])
  })

  it('émet la valeur cliquée', async () => {
    const wrapper = mountWheel(9)
    // clique le premier item dont le label vaut "11"
    const item = wrapper.findAll('[data-test="wheel-item"]').find((w) => w.text() === '11')!
    await item.trigger('click')
    expect(wrapper.emitted('update:modelValue')?.at(-1)).toEqual([11])
  })
})
```

- [ ] **Step 2 : Lancer le test, vérifier l'échec**

Run: `npx vitest run app/components/malio/time/internal/TimeWheel.test.ts`
Expected: FAIL — import non résolu.

- [ ] **Step 3 : Implémenter**

`app/components/malio/time/internal/TimeWheel.vue` :
```vue
<template>
  <div
    ref="container"
    class="malio-wheel relative h-[200px] w-14 snap-y snap-mandatory overflow-y-scroll"
    role="spinbutton"
    :tabindex="0"
    :aria-label="ariaLabel"
    :aria-valuenow="modelValue"
    :aria-valuemin="values[0]"
    :aria-valuemax="values[values.length - 1]"
    :aria-valuetext="pad(modelValue)"
    @keydown="onKeydown"
  >
    <button
      v-for="item in buffer"
      :key="item.key"
      type="button"
      data-test="wheel-item"
      class="flex h-10 w-full snap-center items-center justify-center text-lg outline-none transition-colors"
      :class="item.value === centeredValue ? 'font-bold text-black' : 'text-m-muted'"
      tabindex="-1"
      @click="onItemClick(item.value)"
    >
      {{ pad(item.value) }}
    </button>
  </div>
</template>

<script setup lang="ts">
import {computed, ref, watch} from 'vue'
import {useInfiniteWheel} from '../composables/useInfiniteWheel'
import {padSegment} from '../composables/timeFormat'

defineOptions({name: 'MalioTimeWheel', inheritAttrs: false})

const props = defineProps<{
  modelValue: number
  values: number[]
  ariaLabel: string
}>()

const emit = defineEmits<{(e: 'update:modelValue', value: number): void}>()

const ITEM_HEIGHT = 40
const container = ref<HTMLElement | null>(null)

const pad = (value: number) => padSegment(value)
const indexOfValue = (value: number) => Math.max(0, props.values.indexOf(value))

const {centeredIndex, scrollToIndex, onKeydown} = useInfiniteWheel(container, {
  length: props.values.length,
  itemHeight: ITEM_HEIGHT,
  initialIndex: () => indexOfValue(props.modelValue),
  onChange: (index) => emit('update:modelValue', props.values[index]),
})

const centeredValue = computed(() => props.values[centeredIndex.value])

const buffer = computed(() =>
  [0, 1, 2].flatMap((copy) =>
    props.values.map((value) => ({value, key: copy * props.values.length + value})),
  ),
)

const onItemClick = (value: number) => scrollToIndex(indexOfValue(value))

watch(
  () => props.modelValue,
  (value) => {
    if (props.values[centeredIndex.value] !== value) scrollToIndex(indexOfValue(value), false)
  },
)
</script>

<style scoped>
.malio-wheel {
  scrollbar-width: none;
}
.malio-wheel::-webkit-scrollbar {
  display: none;
}
</style>
```

- [ ] **Step 4 : Lancer le test, vérifier le succès**

Run: `npx vitest run app/components/malio/time/internal/TimeWheel.test.ts`
Expected: PASS (4 tests).

> Note : `centeredValue` dépend de `centeredIndex`, initialisé à `indexOfValue(modelValue)` par le composable — donc l'item correspondant au `modelValue` est bien en gras au premier rendu, même sans scroll réel.

- [ ] **Step 5 : Commit**

```bash
git add app/components/malio/time/internal/TimeWheel.vue app/components/malio/time/internal/TimeWheel.test.ts
git commit -m "[#MUI-39] TimeWheel : colonne molette infinie (clic + clavier + aria)"
```

---

## Task 5 : composant `TimeWheels` (2 colonnes + bande)

**Files:**
- Create: `app/components/malio/time/internal/TimeWheels.vue`
- Test: `app/components/malio/time/internal/TimeWheels.test.ts`

- [ ] **Step 1 : Écrire le test qui échoue**

`app/components/malio/time/internal/TimeWheels.test.ts` :
```ts
import {describe, expect, it} from 'vitest'
import {mount} from '@vue/test-utils'
import TimeWheels from './TimeWheels.vue'
import TimeWheel from './TimeWheel.vue'

const mountWheels = (modelValue = '09:30') =>
  mount(TimeWheels, {props: {modelValue}, attachTo: document.body})

describe('MalioTimeWheels', () => {
  it('rend deux molettes (heures + minutes) et un séparateur', () => {
    const wrapper = mountWheels('09:30')
    const wheels = wrapper.findAllComponents(TimeWheel)
    expect(wheels).toHaveLength(2)
    expect(wheels[0].props('ariaLabel')).toBe('Heures')
    expect(wheels[1].props('ariaLabel')).toBe('Minutes')
    expect(wrapper.text()).toContain(':')
  })

  it('splitte modelValue vers les bonnes molettes', () => {
    const wrapper = mountWheels('09:30')
    const wheels = wrapper.findAllComponents(TimeWheel)
    expect(wheels[0].props('modelValue')).toBe(9)
    expect(wheels[1].props('modelValue')).toBe(30)
  })

  it('recompose et émet HH:MM quand l\'heure change', async () => {
    const wrapper = mountWheels('09:30')
    const wheels = wrapper.findAllComponents(TimeWheel)
    wheels[0].vm.$emit('update:modelValue', 14)
    await wrapper.vm.$nextTick()
    expect(wrapper.emitted('update:modelValue')?.at(-1)).toEqual(['14:30'])
  })

  it('recompose et émet HH:MM quand la minute change', async () => {
    const wrapper = mountWheels('09:30')
    const wheels = wrapper.findAllComponents(TimeWheel)
    wheels[1].vm.$emit('update:modelValue', 5)
    await wrapper.vm.$nextTick()
    expect(wrapper.emitted('update:modelValue')?.at(-1)).toEqual(['09:05'])
  })

  it('par défaut 00:00 quand modelValue est vide', () => {
    const wrapper = mountWheels('')
    const wheels = wrapper.findAllComponents(TimeWheel)
    expect(wheels[0].props('modelValue')).toBe(0)
    expect(wheels[1].props('modelValue')).toBe(0)
  })
})
```

- [ ] **Step 2 : Lancer le test, vérifier l'échec**

Run: `npx vitest run app/components/malio/time/internal/TimeWheels.test.ts`
Expected: FAIL — import non résolu.

- [ ] **Step 3 : Implémenter**

`app/components/malio/time/internal/TimeWheels.vue` :
```vue
<template>
  <div
    data-test="time-wheels"
    class="relative flex items-center justify-center gap-3 py-2"
  >
    <!-- bande centrale (overlay, traverse les 2 colonnes) -->
    <div
      class="pointer-events-none absolute inset-x-2 top-1/2 z-0 h-10 -translate-y-1/2 rounded-lg bg-m-primary/10"
    />

    <MalioTimeWheel
      :model-value="hours"
      :values="HOURS"
      aria-label="Heures"
      class="relative z-10"
      @update:model-value="onHours"
    />

    <span class="relative z-10 text-lg font-bold text-black">:</span>

    <MalioTimeWheel
      :model-value="minutes"
      :values="MINUTES"
      aria-label="Minutes"
      class="relative z-10"
      @update:model-value="onMinutes"
    />
  </div>
</template>

<script setup lang="ts">
import {computed} from 'vue'
import MalioTimeWheel from './TimeWheel.vue'
import {formatTime, parseTime} from '../composables/timeFormat'

defineOptions({name: 'MalioTimeWheels', inheritAttrs: false})

const props = withDefaults(
  defineProps<{modelValue?: string | null}>(),
  {modelValue: ''},
)

const emit = defineEmits<{(e: 'update:modelValue', value: string): void}>()

const HOURS = Array.from({length: 24}, (_, i) => i)
const MINUTES = Array.from({length: 60}, (_, i) => i)

const parts = computed(() => parseTime(props.modelValue) ?? {hours: 0, minutes: 0})
const hours = computed(() => parts.value.hours)
const minutes = computed(() => parts.value.minutes)

const onHours = (value: number) => emit('update:modelValue', formatTime(value, minutes.value))
const onMinutes = (value: number) => emit('update:modelValue', formatTime(hours.value, value))
</script>
```

- [ ] **Step 4 : Lancer le test, vérifier le succès**

Run: `npx vitest run app/components/malio/time/internal/TimeWheels.test.ts`
Expected: PASS (5 tests).

- [ ] **Step 5 : Commit**

```bash
git add app/components/malio/time/internal/TimeWheels.vue app/components/malio/time/internal/TimeWheels.test.ts
git commit -m "[#MUI-39] TimeWheels : deux molettes HH:MM + bande centrale"
```

---

## Task 6 : composant public `TimePicker` (champ + popover)

**Files:**
- Create: `app/components/malio/time/TimePicker.vue`
- Test: `app/components/malio/time/TimePicker.test.ts`

- [ ] **Step 1 : Écrire le test qui échoue**

`app/components/malio/time/TimePicker.test.ts` :
```ts
import {describe, expect, it} from 'vitest'
import {mount} from '@vue/test-utils'
import type {DefineComponent} from 'vue'
import TimePicker from './TimePicker.vue'

type TimePickerProps = {
  id?: string
  name?: string
  label?: string
  modelValue?: string | null
  placeholder?: string
  required?: boolean
  disabled?: boolean
  readonly?: boolean
  hint?: string
  error?: string
  success?: string
  clearable?: boolean
  inputClass?: string
  labelClass?: string
  groupClass?: string
}

const TimePickerForTest = TimePicker as DefineComponent<TimePickerProps>
const mountPicker = (props: TimePickerProps = {}) =>
  mount(TimePickerForTest, {props, attachTo: document.body})

describe('MalioTimePicker', () => {
  it('affiche le label et l\'icône horloge', () => {
    const wrapper = mountPicker({label: 'Heure'})
    expect(wrapper.get('label').text()).toBe('Heure')
    expect(wrapper.find('[data-test="clock-icon"]').exists()).toBe(true)
  })

  it('affiche la valeur HH:MM dans le champ', () => {
    const wrapper = mountPicker({modelValue: '14:30'})
    const input = wrapper.get('[data-test="time-field"]').element as HTMLInputElement
    expect(input.value).toBe('14:30')
  })

  it('ouvre le popover à molettes au clic', async () => {
    const wrapper = mountPicker()
    expect(wrapper.find('[data-test="popover"]').exists()).toBe(false)
    await wrapper.get('[data-test="time-field"]').trigger('click')
    expect(wrapper.find('[data-test="popover"]').exists()).toBe(true)
    expect(wrapper.find('[data-test="time-wheels"]').exists()).toBe(true)
  })

  it('n\'ouvre pas le popover si disabled', async () => {
    const wrapper = mountPicker({disabled: true})
    await wrapper.get('[data-test="time-field"]').trigger('click')
    expect(wrapper.find('[data-test="popover"]').exists()).toBe(false)
  })

  it('émet la valeur réglée depuis les molettes', async () => {
    const wrapper = mountPicker({modelValue: '09:30'})
    await wrapper.get('[data-test="time-field"]').trigger('click')
    wrapper.findComponent({name: 'MalioTimeWheels'}).vm.$emit('update:modelValue', '10:30')
    await wrapper.vm.$nextTick()
    expect(wrapper.emitted('update:modelValue')?.at(-1)).toEqual(['10:30'])
  })

  it('émet null au clic sur la croix', async () => {
    const wrapper = mountPicker({modelValue: '14:30'})
    await wrapper.get('[data-test="clear"]').trigger('click')
    expect(wrapper.emitted('update:modelValue')?.at(-1)).toEqual([null])
  })

  it('positionne aria-invalid et describedby sur erreur', () => {
    const wrapper = mountPicker({error: 'Heure requise'})
    const input = wrapper.get('[data-test="time-field"]')
    expect(input.attributes('aria-invalid')).toBe('true')
    expect(input.attributes('aria-describedby')).toBeTruthy()
    expect(wrapper.text()).toContain('Heure requise')
  })
})
```

- [ ] **Step 2 : Lancer le test, vérifier l'échec**

Run: `npx vitest run app/components/malio/time/TimePicker.test.ts`
Expected: FAIL — import non résolu.

- [ ] **Step 3 : Implémenter**

`app/components/malio/time/TimePicker.vue` :
```vue
<template>
  <div>
    <div
      ref="root"
      :class="mergedGroupClass"
    >
      <input
        :id="inputId"
        :name="name"
        data-test="time-field"
        readonly
        autocomplete="off"
        :class="mergedInputClass"
        :required="required"
        :disabled="disabled"
        :value="displayValue"
        :aria-invalid="!!error"
        :aria-describedby="describedBy"
        :aria-expanded="isOpen"
        aria-haspopup="dialog"
        v-bind="attrs"
        placeholder="_"
        type="text"
        @click="onFieldClick"
      >

      <label
        v-if="label"
        :for="inputId"
        :class="mergedLabelClass"
      >
        {{ label }}
      </label>

      <div class="absolute right-3 top-1/2 flex -translate-y-1/2 items-center gap-1">
        <button
          v-if="showClear"
          type="button"
          data-test="clear"
          class="text-m-muted hover:text-m-primary"
          aria-label="Effacer l'heure"
          @click.stop="onClear"
        >
          <Icon icon="mdi:close" :width="16" :height="16" />
        </button>
        <Icon
          data-test="clock-icon"
          icon="mdi:clock-outline"
          :width="24"
          :height="24"
          :class="iconStateClass"
        />
      </div>

      <div
        v-if="isOpen"
        data-test="popover"
        role="dialog"
        class="absolute left-0 right-0 top-full z-20 box-border w-full bg-white p-[10px] shadow-[0_4px_4px_0_rgba(0,0,0,0.25)]"
      >
        <TimeWheels
          :model-value="wheelsValue"
          @update:model-value="onWheelChange"
        />
      </div>
    </div>

    <p
      v-if="hint || hasError || hasSuccess"
      :id="`${inputId}-describedby`"
      :class="[
        hasError ? 'text-m-danger' : hasSuccess ? 'text-m-success' : 'text-m-muted',
        'mt-1 ml-[2px] text-xs',
      ]"
    >
      {{ error || success || hint }}
    </p>
  </div>
</template>

<script setup lang="ts">
import {computed, onBeforeUnmount, onMounted, ref, useAttrs, useId} from 'vue'
import {Icon} from '@iconify/vue'
import {twMerge} from 'tailwind-merge'
import TimeWheels from './internal/TimeWheels.vue'

defineOptions({name: 'MalioTimePicker', inheritAttrs: false})

const props = withDefaults(
  defineProps<{
    id?: string
    name?: string
    label?: string
    modelValue?: string | null
    placeholder?: string
    required?: boolean
    disabled?: boolean
    readonly?: boolean
    hint?: string
    error?: string
    success?: string
    clearable?: boolean
    inputClass?: string
    labelClass?: string
    groupClass?: string
  }>(),
  {
    id: '',
    name: '',
    label: '',
    modelValue: undefined,
    placeholder: 'HH:MM',
    required: false,
    disabled: false,
    readonly: false,
    hint: '',
    error: '',
    success: '',
    clearable: true,
    inputClass: '',
    labelClass: '',
    groupClass: '',
  },
)

const emit = defineEmits<{(e: 'update:modelValue', value: string | null): void}>()

const attrs = useAttrs()
const generatedId = useId()
const root = ref<HTMLElement | null>(null)
const isOpen = ref(false)
const localValue = ref<string | null>(null)

const isControlled = computed(() => props.modelValue !== undefined)
const currentValue = computed(() => (isControlled.value ? props.modelValue : localValue.value))

const inputId = computed(() => props.id?.toString() || `malio-time-picker-${generatedId}`)
const hasError = computed(() => !!props.error)
const hasSuccess = computed(() => !!props.success && !hasError.value)
const displayValue = computed(() => currentValue.value ?? '')
const isFilled = computed(() => displayValue.value.length > 0)
const wheelsValue = computed(() => currentValue.value || '00:00')
const showClear = computed(() =>
  props.clearable && isFilled.value && !props.disabled && !props.readonly,
)
const describedBy = computed(() =>
  (props.hint || hasError.value || hasSuccess.value) ? `${inputId.value}-describedby` : undefined,
)

const commit = (value: string | null) => {
  if (!isControlled.value) localValue.value = value
  emit('update:modelValue', value)
}

const onWheelChange = (value: string) => commit(value)

const onClear = () => {
  commit(null)
}

const onFieldClick = () => {
  if (props.disabled || props.readonly) return
  isOpen.value = !isOpen.value
}

const onMouseDown = (event: MouseEvent) => {
  if (!isOpen.value || !root.value) return
  if (!root.value.contains(event.target as Node)) isOpen.value = false
}

onMounted(() => document.addEventListener('mousedown', onMouseDown))
onBeforeUnmount(() => document.removeEventListener('mousedown', onMouseDown))

const mergedGroupClass = computed(() =>
  twMerge('relative flex h-12 w-full items-center', props.groupClass),
)

const mergedInputClass = computed(() =>
  twMerge(
    'floating-input peer min-h-[40px] w-full cursor-pointer rounded-md border bg-white py-1 pl-3 pr-10 text-lg outline-none transition-[padding] duration-150 placeholder:text-transparent',
    isFilled.value ? 'border-black' : 'border-m-muted',
    props.disabled ? 'cursor-not-allowed border-m-muted text-black/60' : '',
    hasError.value
      ? 'border-m-danger'
      : hasSuccess.value
        ? 'border-m-success'
        : 'focus:border-m-primary',
    isOpen.value ? 'border-m-primary !rounded-b-none !py-[9px]' : '',
    props.inputClass,
  ),
)

const mergedLabelClass = computed(() =>
  twMerge(
    'floating-label absolute left-3 top-2 mt-[5px] inline-block origin-left text-sm font-medium transition-transform duration-150',
    (isFilled.value || isOpen.value) ? '-translate-y-[1.25rem] scale-90' : '',
    hasError.value
      ? 'text-m-danger'
      : hasSuccess.value
        ? 'text-m-success'
        : isOpen.value
          ? 'text-m-primary'
          : 'text-black peer-placeholder-shown:text-m-muted',
    props.labelClass,
  ),
)

const iconStateClass = computed(() => {
  if (hasError.value) return 'text-m-danger'
  if (hasSuccess.value) return 'text-m-success'
  if (isOpen.value) return 'text-m-primary'
  if (isFilled.value) return 'text-black'
  return 'text-m-muted'
})
</script>

<style scoped>
.floating-label {
  background: white;
  padding: 0 0.25rem;
}
</style>
```

> Le popover **n'a pas** de `rounded-b-md` (contrairement à `CalendarField`), conformément à la maquette.

- [ ] **Step 4 : Lancer le test, vérifier le succès**

Run: `npx vitest run app/components/malio/time/TimePicker.test.ts`
Expected: PASS (7 tests).

- [ ] **Step 5 : Commit**

```bash
git add app/components/malio/time/TimePicker.vue app/components/malio/time/TimePicker.test.ts
git commit -m "[#MUI-39] TimePicker : champ + popover molette (MalioTimePicker)"
```

---

## Task 7 : rebrancher `DateTime` sur `TimeWheels`

Remplace l'`<input type="time">` natif par `<TimeWheels>`. On garde `data-test="time-input"` non plus, on ciblera la brique molette.

**Files:**
- Modify: `app/components/malio/date/DateTime.vue`
- Modify: `app/components/malio/date/DateTime.test.ts`

- [ ] **Step 1 : Mettre à jour les tests (rouge)**

Dans `app/components/malio/date/DateTime.test.ts`, **remplacer** le bloc `describe('popover', ...)` et les tests `sélection` qui utilisent `[data-test="time-input"]` par les versions ci-dessous (le reste du fichier — rendu, bornes, effacement, accessibilité — est inchangé) :

```ts
import TimeWheels from '../time/internal/TimeWheels.vue'

// ... dans describe('popover')
it('ouvre la grille et les molettes au clic', async () => {
  const wrapper = mountDateTime()
  await wrapper.get('[data-test="date-input"]').trigger('click')
  expect(wrapper.find('[data-test="month-grid"]').exists()).toBe(true)
  expect(wrapper.find('[data-test="time-wheels"]').exists()).toBe(true)
})

// ... dans describe('sélection'), remplacer les 3 tests heure par :
it('applique l\'heure réglée avant le clic du jour', async () => {
  const wrapper = mountDateTime()
  await wrapper.get('[data-test="date-input"]').trigger('click')
  wrapper.findComponent(TimeWheels).vm.$emit('update:modelValue', '09:15')
  await wrapper.vm.$nextTick()
  expect(wrapper.emitted('update:modelValue')).toBeUndefined()
  await wrapper.get('[data-test="day"][data-iso="2026-05-19"]').trigger('click')
  expect(wrapper.emitted('update:modelValue')?.at(-1)).toEqual(['2026-05-19T09:15:00'])
})

it('met à jour l\'heure quand une date est déjà choisie', async () => {
  const wrapper = mountDateTime({modelValue: '2026-05-20T14:30:00'})
  await wrapper.get('[data-test="date-input"]').trigger('click')
  wrapper.findComponent(TimeWheels).vm.$emit('update:modelValue', '08:45')
  await wrapper.vm.$nextTick()
  expect(wrapper.emitted('update:modelValue')?.at(-1)).toEqual(['2026-05-20T08:45:00'])
})

it('initialise les molettes depuis la valeur', async () => {
  const wrapper = mountDateTime({modelValue: '2026-05-20T14:30:00'})
  await wrapper.get('[data-test="date-input"]').trigger('click')
  expect(wrapper.findComponent(TimeWheels).props('modelValue')).toBe('14:30')
})
```

- [ ] **Step 2 : Lancer les tests, vérifier l'échec**

Run: `npx vitest run app/components/malio/date/DateTime.test.ts`
Expected: FAIL — `[data-test="time-wheels"]` introuvable (DateTime utilise encore l'input natif).

- [ ] **Step 3 : Modifier `DateTime.vue`**

Dans `app/components/malio/date/DateTime.vue`, **remplacer** le bloc heure intérimaire (lignes ~31-41) :
```vue
      <!-- Bloc heure intérimaire : input natif, isolé pour remplacement futur par le sélecteur dédié. -->
      <div class="mt-[26px] flex-col items-center gap-2">
        <input
          :id="timeInputId"
          data-test="time-input"
          type="time"
          :value="timeValue"
          class="w-full border border-m-muted bg-white px-2 py-1 text-base outline-none focus:border-m-primary"
          @input="onTimeInput"
        >
      </div>
```
par :
```vue
      <div class="mt-[26px]">
        <TimeWheels
          :model-value="timeValue || '00:00'"
          @update:model-value="onTimeChange"
        />
      </div>
```

Dans le `<script setup>`, ajouter l'import :
```ts
import TimeWheels from '../time/internal/TimeWheels.vue'
```

Supprimer `timeInputId` :
```ts
const timeInputId = computed(() => `${props.id || `malio-datetime-${generatedId}`}-time`)
```
(et l'import `useId` s'il n'est plus utilisé ailleurs — vérifier ; `generatedId` n'est utilisé que par `timeInputId`, donc supprimer aussi `const generatedId = useId()` et retirer `useId` de l'import `vue`).

Remplacer `onTimeInput` :
```ts
function onTimeInput(e: Event) {
  const value = (e.target as HTMLInputElement).value
  if (!value) return
  if (datePart.value) {
    emit('update:modelValue', composeDateTime(datePart.value, value))
  }
  else {
    pendingTime.value = value
  }
}
```
par :
```ts
function onTimeChange(value: string) {
  if (datePart.value) {
    emit('update:modelValue', composeDateTime(datePart.value, value))
  }
  else {
    pendingTime.value = value
  }
}
```

- [ ] **Step 4 : Lancer les tests, vérifier le succès**

Run: `npx vitest run app/components/malio/date/DateTime.test.ts`
Expected: PASS. ⚠️ Suite Date flaky : si échec sporadique non lié, relancer 2-3×.

- [ ] **Step 5 : Lancer toute la suite date + time + lint**

Run: `npx vitest run app/components/malio/date app/components/malio/time && npm run lint`
Expected: PASS (relancer si flaky).

- [ ] **Step 6 : Commit**

```bash
git add app/components/malio/date/DateTime.vue app/components/malio/date/DateTime.test.ts
git commit -m "[#MUI-39] DateTime : remplace l'input time natif par les molettes"
```

---

## Task 8 : page playground + entrée nav

**Files:**
- Create: `.playground/pages/composant/time/timePicker.vue`
- Modify: `.playground/playground.nav.ts`

- [ ] **Step 1 : Créer la page playground**

`.playground/pages/composant/time/timePicker.vue` :
```vue
<template>
  <div class="grid grid-cols-1 items-start gap-6 md:grid-cols-2">
    <div class="rounded-lg border p-4">
      <h2 class="mb-4 text-xl font-bold">Simple</h2>
      <MalioTimePicker v-model="simpleValue" label="Heure" />
      <p class="mt-2 text-sm text-m-muted">Valeur : {{ simpleValue || '—' }}</p>
    </div>

    <div class="rounded-lg border p-4">
      <h2 class="mb-4 text-xl font-bold">Valeur initiale</h2>
      <MalioTimePicker v-model="initialValue" label="Heure de départ" hint="Format HH:MM" />
    </div>

    <div class="rounded-lg border p-4">
      <h2 class="mb-4 text-xl font-bold">Désactivé</h2>
      <MalioTimePicker v-model="disabledValue" label="Heure verrouillée" disabled />
    </div>

    <div class="rounded-lg border p-4">
      <h2 class="mb-4 text-xl font-bold">Erreur</h2>
      <MalioTimePicker v-model="errorValue" label="Heure de fermeture" error="Heure invalide" />
    </div>

    <div class="rounded-lg border p-4">
      <h2 class="mb-4 text-xl font-bold">Succès</h2>
      <MalioTimePicker v-model="successValue" label="Heure confirmée" success="Horaire enregistré" />
    </div>

    <div class="rounded-lg border p-4">
      <h2 class="mb-4 text-xl font-bold">Non effaçable</h2>
      <MalioTimePicker v-model="noClearValue" label="Heure" :clearable="false" />
    </div>
  </div>
</template>

<script setup lang="ts">
import {ref} from 'vue'

const simpleValue = ref('')
const initialValue = ref('08:30')
const disabledValue = ref('14:15')
const errorValue = ref('25:90')
const successValue = ref('09:00')
const noClearValue = ref('10:00')
</script>
```

> `MalioTimePicker` est auto-importé par le layer (dossier `malio/`), pas besoin d'import explicite dans la page playground.

- [ ] **Step 2 : Ajouter l'entrée nav**

Dans `.playground/playground.nav.ts`, section `DATES & HEURES`, ajouter après la ligne `{label: 'Heure', to: '/composant/time/time'},` :
```ts
      {label: 'Sélecteur d\'heure', to: '/composant/time/timePicker'},
```

- [ ] **Step 3 : Vérifier la génération de types / build playground**

Run: `npm run dev:prepare`
Expected: succès sans erreur de type sur `MalioTimePicker`.

- [ ] **Step 4 : Commit**

```bash
git add .playground/pages/composant/time/timePicker.vue .playground/playground.nav.ts
git commit -m "[#MUI-39] playground : page et nav pour MalioTimePicker"
```

---

## Task 9 : Histoire (story)

**Files:**
- Create: `app/story/time/timePicker.story.vue`

- [ ] **Step 1 : Créer la story**

`app/story/time/timePicker.story.vue` :
```vue
<template>
  <Story title="Time/TimePicker">
    <div class="grid grid-cols-1 items-start gap-6 md:grid-cols-2">
      <div class="rounded-lg border p-4">
        <h2 class="mb-4 text-xl font-bold">Simple</h2>
        <MalioTimePicker v-model="simpleValue" label="Heure" />
      </div>

      <div class="rounded-lg border p-4">
        <h2 class="mb-4 text-xl font-bold">Valeur initiale</h2>
        <MalioTimePicker v-model="initialValue" label="Heure de départ" hint="Format HH:MM" />
      </div>

      <div class="rounded-lg border p-4">
        <h2 class="mb-4 text-xl font-bold">Désactivé</h2>
        <MalioTimePicker v-model="disabledValue" label="Heure verrouillée" disabled />
      </div>

      <div class="rounded-lg border p-4">
        <h2 class="mb-4 text-xl font-bold">Erreur</h2>
        <MalioTimePicker v-model="errorValue" label="Heure de fermeture" error="Heure invalide" />
      </div>

      <div class="rounded-lg border p-4">
        <h2 class="mb-4 text-xl font-bold">Succès</h2>
        <MalioTimePicker v-model="successValue" label="Heure confirmée" success="Horaire enregistré" />
      </div>
    </div>
  </Story>
</template>

<script setup lang="ts">
import {ref} from 'vue'
import MalioTimePicker from '../../components/malio/time/TimePicker.vue'

const simpleValue = ref('')
const initialValue = ref('08:30')
const disabledValue = ref('14:15')
const errorValue = ref('25:90')
const successValue = ref('09:00')
</script>
```

- [ ] **Step 2 : Commit**

```bash
git add app/story/time/timePicker.story.vue
git commit -m "[#MUI-39] story : MalioTimePicker"
```

---

## Task 10 : documentation (COMPONENTS.md + CHANGELOG.md)

**Files:**
- Modify: `COMPONENTS.md`
- Modify: `CHANGELOG.md`

- [ ] **Step 1 : Ajouter la section dans `COMPONENTS.md`**

Ajouter une section `## MalioTimePicker` (la placer près de la section `MalioTime` / famille date) :
```markdown
## MalioTimePicker

Sélecteur d'heure à molettes style iOS (champ + popover). Deux colonnes infinies
(heures `00–23`, minutes `00–59`, pas de 1) avec bande de sélection centrale.
Scroll, clic ou flèches clavier. Pour la saisie clavier directe, voir `MalioTime`.

| Prop | Type | Défaut | Description |
|------|------|--------|-------------|
| `id` | `string` | auto | Identifiant HTML |
| `name` | `string` | `''` | Attribut name |
| `label` | `string` | `''` | Label flottant |
| `modelValue` | `string \| null` | `undefined` | Valeur `"HH:MM"` (v-model) |
| `placeholder` | `string` | `'HH:MM'` | Placeholder |
| `required` | `boolean` | `false` | Champ requis |
| `disabled` | `boolean` | `false` | Désactive le champ |
| `readonly` | `boolean` | `false` | Lecture seule |
| `clearable` | `boolean` | `true` | Affiche la croix d'effacement |
| `hint` | `string` | `''` | Message d'aide |
| `error` | `string` | `''` | Message d'erreur |
| `success` | `string` | `''` | Message de succès |
| `inputClass` | `string` | `''` | Classes CSS input |
| `labelClass` | `string` | `''` | Classes CSS label |
| `groupClass` | `string` | `''` | Classes CSS conteneur |

**Events :** `update:modelValue(value: string | null)`

```vue
<MalioTimePicker v-model="heure" label="Heure" />
<MalioTimePicker v-model="heure" label="Départ" hint="Format HH:MM" />
```
```

Puis, dans la section `MalioDateTime` existante, ajouter une note :
```markdown
> Depuis MUI-39, le réglage de l'heure utilise le sélecteur à molettes (cf. `MalioTimePicker`).
```

- [ ] **Step 2 : Ajouter l'entrée dans `CHANGELOG.md`**

Sous `### Added` :
```markdown
* [#MUI-39] Création d'un sélecteur d'heure à molettes (MalioTimePicker) + DateTime rebranché dessus
```

- [ ] **Step 3 : Commit**

```bash
git add COMPONENTS.md CHANGELOG.md
git commit -m "[#MUI-39] doc : MalioTimePicker dans COMPONENTS.md + CHANGELOG"
```

---

## Task 11 : vérification finale

- [ ] **Step 1 : Suite complète + lint**

Run: `npm run test && npm run lint`
Expected: PASS. ⚠️ Date & InputRichText flaky → relancer 2-3× avant de conclure à une régression.

- [ ] **Step 2 : Vérification manuelle playground**

Run: `npm run dev` puis ouvrir `/composant/time/timePicker`.
Vérifier : ouverture du popover, défilement des molettes avec snap, valeur centrée en gras, clic sur une valeur voisine qui recentre, flèches clavier, boucle 23→00, croix d'effacement, affichage `HH:MM` dans le champ.
Vérifier aussi `/composant/date/datetime` : les molettes remplacent l'input natif et l'heure se compose bien avec la date.

> Cette étape valide le ressenti molette que jsdom ne peut pas tester.

---

## Récapitulatif des fichiers

**Créés :**
- `app/components/malio/time/composables/timeFormat.ts` (+ test)
- `app/components/malio/time/composables/useInfiniteWheel.ts` (+ test)
- `app/components/malio/time/internal/TimeWheel.vue` (+ test)
- `app/components/malio/time/internal/TimeWheels.vue` (+ test)
- `app/components/malio/time/TimePicker.vue` (+ test)
- `.playground/pages/composant/time/timePicker.vue`
- `app/story/time/timePicker.story.vue`

**Modifiés :**
- `app/components/malio/date/DateTime.vue` (+ test)
- `.playground/playground.nav.ts`
- `COMPONENTS.md`
- `CHANGELOG.md`