feat(settings): sliders taille texte/menu/icônes/miniatures + CSS vars globales

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/views/ReglagesView.vue

@@ -2,6 +2,38 @@
   <div class="p-4 max-w-3xl mx-auto">
     <h1 class="text-2xl font-bold text-green mb-4">Réglages</h1>
 
+    <section class="bg-bg-soft border border-bg-hard rounded-xl p-4 mb-4">
+      <h2 class="text-text font-semibold mb-2">Interface</h2>
+      <p class="text-text-muted text-sm mb-4">Ajustez les tailles d'affichage. Les changements sont appliqués instantanément.</p>
+
+      <div class="grid grid-cols-1 gap-4">
+        <div v-for="s in uiSizeSettings" :key="s.key" class="flex items-center gap-3">
+          <label class="text-sm text-text w-44 shrink-0">{{ s.label }}</label>
+          <input
+            type="range"
+            :min="s.min" :max="s.max" :step="s.step"
+            v-model.number="uiSizes[s.key]"
+            class="flex-1 accent-green"
+            @input="applyUiSizes"
+          />
+          <span class="text-text-muted text-xs w-12 text-right">{{ uiSizes[s.key] }}{{ s.unit }}</span>
+        </div>
+      </div>
+
+      <div class="mt-4 flex items-center gap-2">
+        <button
+          class="bg-green text-bg px-4 py-2 rounded-lg text-sm font-semibold hover:opacity-90"
+          :disabled="savingUi"
+          @click="saveUiSettings"
+        >{{ savingUi ? 'Enregistrement...' : 'Enregistrer' }}</button>
+        <button
+          class="text-text-muted text-xs hover:text-text px-2"
+          @click="resetUiSettings"
+        >Réinitialiser</button>
+        <span v-if="uiSavedMsg" class="text-xs text-aqua">{{ uiSavedMsg }}</span>
+      </div>
+    </section>
+
     <section class="bg-bg-soft border border-bg-hard rounded-xl p-4 mb-4">
       <h2 class="text-text font-semibold mb-2">Général</h2>
       <p class="text-text-muted text-sm mb-3">Options globales de l'application.</p>
@@ -35,14 +67,49 @@
       </button>
     </section>
 
+    <section class="bg-bg-soft border border-bg-hard rounded-xl p-4 mb-4">
+      <h2 class="text-text font-semibold mb-2">Test API backend</h2>
+      <p class="text-text-muted text-sm mb-2">
+        Ouvre la documentation interactive de l'API et un test rapide de santé.
+      </p>
+      <p class="text-text-muted text-xs mb-3">Base API détectée: <span class="text-text">{{ apiBaseUrl }}</span></p>
+      <div class="flex flex-wrap items-center gap-2">
+        <button
+          class="bg-blue text-bg px-3 py-2 rounded-lg text-xs font-semibold hover:opacity-90"
+          @click="openApiDocs"
+        >
+          Ouvrir Swagger (/docs)
+        </button>
+        <button
+          class="bg-aqua text-bg px-3 py-2 rounded-lg text-xs font-semibold hover:opacity-90"
+          @click="openApiRedoc"
+        >
+          Ouvrir ReDoc (/redoc)
+        </button>
+        <button
+          class="bg-bg border border-bg-hard text-text px-3 py-2 rounded-lg text-xs font-semibold hover:border-text-muted"
+          @click="openApiHealth"
+        >
+          Tester /api/health
+        </button>
+      </div>
+    </section>
+
     <section class="bg-bg-soft border border-bg-hard rounded-xl p-4">
-      <h2 class="text-text font-semibold mb-2">Idées utiles (prochaine étape)</h2>
-      <ul class="text-text-muted text-sm space-y-1">
-        <li>• Sauvegarde/restauration JSON de la base métier</li>
-        <li>• Rotation/nettoyage des médias anciens</li>
-        <li>• Choix des unités météo (°C, mm, km/h)</li>
-        <li>• Paramètres de seuils alertes (gel, pluie, vent)</li>
-      </ul>
+      <h2 class="text-text font-semibold mb-2">Sauvegarde des données</h2>
+      <p class="text-text-muted text-sm mb-3">
+        Exporte un ZIP téléchargeable contenant la base SQLite, les images/vidéos uploadées et les fichiers texte utiles.
+      </p>
+      <div class="flex items-center gap-2">
+        <button
+          class="bg-aqua text-bg px-4 py-2 rounded-lg text-sm font-semibold hover:opacity-90"
+          :disabled="downloadingBackup"
+          @click="downloadBackup"
+        >
+          {{ downloadingBackup ? 'Préparation du ZIP...' : 'Télécharger la sauvegarde (.zip)' }}
+        </button>
+        <span v-if="backupMsg" class="text-xs text-aqua">{{ backupMsg }}</span>
+      </div>
     </section>
   </div>
 </template>
@@ -56,6 +123,90 @@ const debugMode = ref(false)
 const saving = ref(false)
 const savedMsg = ref('')
 const refreshingMeteo = ref(false)
+const downloadingBackup = ref(false)
+const backupMsg = ref('')
+const apiBaseUrl = detectApiBaseUrl()
+
+// --- UI Size settings ---
+const UI_DEFAULTS: Record<string, number> = {
+  ui_font_size: 14,
+  ui_menu_font_size: 13,
+  ui_menu_icon_size: 18,
+  ui_thumb_size: 96,
+}
+
+const uiSizeSettings = [
+  { key: 'ui_font_size',      label: 'Taille texte',            min: 12, max: 20,  step: 1, unit: 'px' },
+  { key: 'ui_menu_font_size', label: 'Texte menu latéral',      min: 11, max: 18,  step: 1, unit: 'px' },
+  { key: 'ui_menu_icon_size', label: 'Icônes menu',             min: 14, max: 28,  step: 1, unit: 'px' },
+  { key: 'ui_thumb_size',     label: 'Miniatures images/vidéo', min: 60, max: 200, step: 4, unit: 'px' },
+]
+
+const uiSizes = ref<Record<string, number>>({ ...UI_DEFAULTS })
+const savingUi = ref(false)
+const uiSavedMsg = ref('')
+
+function applyUiSizes() {
+  const root = document.documentElement
+  root.style.setProperty('--ui-font-size',      `${uiSizes.value.ui_font_size}px`)
+  root.style.setProperty('--ui-menu-font-size', `${uiSizes.value.ui_menu_font_size}px`)
+  root.style.setProperty('--ui-menu-icon-size', `${uiSizes.value.ui_menu_icon_size}px`)
+  root.style.setProperty('--ui-thumb-size',     `${uiSizes.value.ui_thumb_size}px`)
+  window.dispatchEvent(new CustomEvent('ui-sizes-updated', { detail: { ...uiSizes.value } }))
+}
+
+async function saveUiSettings() {
+  savingUi.value = true
+  uiSavedMsg.value = ''
+  try {
+    const payload: Record<string, string> = {}
+    for (const [k, v] of Object.entries(uiSizes.value)) payload[k] = String(v)
+    await settingsApi.update(payload)
+    applyUiSizes()
+    uiSavedMsg.value = 'Enregistré'
+    setTimeout(() => { uiSavedMsg.value = '' }, 1800)
+  } finally {
+    savingUi.value = false
+  }
+}
+
+function resetUiSettings() {
+  uiSizes.value = { ...UI_DEFAULTS }
+  applyUiSizes()
+}
+
+function detectApiBaseUrl(): string {
+  const envBase = String((import.meta as any).env?.VITE_API_URL || '').trim()
+  if (envBase) {
+    if (envBase.startsWith('http://') || envBase.startsWith('https://')) {
+      return envBase.replace(/\/$/, '')
+    }
+    if (envBase.startsWith('/')) {
+      return window.location.origin
+    }
+  }
+  if (window.location.port === '8060') {
+    return window.location.origin
+  }
+  return `${window.location.protocol}//${window.location.hostname}:8060`
+}
+
+function openInNewTab(path: string) {
+  const url = `${apiBaseUrl}${path}`
+  window.open(url, '_blank', 'noopener,noreferrer')
+}
+
+function openApiDocs() {
+  openInNewTab('/docs')
+}
+
+function openApiRedoc() {
+  openInNewTab('/redoc')
+}
+
+function openApiHealth() {
+  openInNewTab('/api/health')
+}
 
 function toBool(value: unknown): boolean {
   if (typeof value === 'boolean') return value
@@ -73,6 +224,11 @@ async function loadSettings() {
     const data = await settingsApi.get()
     debugMode.value = toBool(data.debug_mode)
     notifyDebugChanged(debugMode.value)
+    for (const s of uiSizeSettings) {
+      const v = data[s.key]
+      if (v != null) uiSizes.value[s.key] = Number(v) || UI_DEFAULTS[s.key]
+    }
+    applyUiSizes()
   } catch {
     // Laisse la valeur locale si l'API n'est pas disponible.
   }
@@ -100,6 +256,28 @@ async function refreshMeteo() {
   }
 }
 
+async function downloadBackup() {
+  downloadingBackup.value = true
+  backupMsg.value = ''
+  try {
+    const { blob, filename } = await settingsApi.downloadBackup()
+    const url = window.URL.createObjectURL(blob)
+    const a = document.createElement('a')
+    a.href = url
+    a.download = filename
+    document.body.appendChild(a)
+    a.click()
+    document.body.removeChild(a)
+    window.URL.revokeObjectURL(url)
+    backupMsg.value = 'Téléchargement lancé.'
+  } catch {
+    backupMsg.value = 'Erreur lors de la sauvegarde.'
+  } finally {
+    downloadingBackup.value = false
+    window.setTimeout(() => { backupMsg.value = '' }, 2200)
+  }
+}
+
 onMounted(() => {
   void loadSettings()
 })