feat(frontend) : add portal pages, update auth middleware and DTOs for client portal

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

frontend/layouts/portal.vue

@@ -0,0 +1,76 @@
+<template>
+    <div class="h-screen overflow-hidden">
+        <div class="flex h-full">
+            <!-- Mobile sidebar overlay -->
+            <Transition name="sidebar-overlay">
+                <div
+                    v-if="ui.sidebarOpen"
+                    class="fixed inset-0 z-40 bg-black/50 lg:hidden"
+                    @click="ui.closeMobileSidebar()"
+                />
+            </Transition>
+
+            <aside
+                class="fixed inset-y-0 left-0 z-50 flex h-full w-64 flex-shrink-0 flex-col border-r border-neutral-200 bg-tertiary-500 transition-transform duration-300 lg:static lg:z-auto lg:translate-x-0"
+                :class="ui.sidebarOpen ? 'translate-x-0' : '-translate-x-full'"
+            >
+                <div class="flex items-center justify-between">
+                    <img src="/malio.png" alt="Logo" class="w-auto" />
+                    <button
+                        class="mr-2 rounded-md p-2 text-neutral-500 hover:bg-neutral-200 hover:text-neutral-700 transition-colors lg:hidden"
+                        @click="ui.closeMobileSidebar()"
+                    >
+                        <Icon name="mdi:close" size="20" />
+                    </button>
+                </div>
+                <nav class="flex-1 px-4 pb-6">
+                    <SidebarLink
+                        to="/portal"
+                        icon="mdi:folder-outline"
+                        label="Mes projets"
+                        :collapsed="false"
+                        class="border-t border-secondary-500 pt-6"
+                        @click="ui.closeMobileSidebar()"
+                    />
+                </nav>
+
+                <div class="flex flex-col gap-2 items-center p-4">
+                    <p class="font-bold">v {{ version }}</p>
+                </div>
+            </aside>
+
+            <div class="h-full flex-1 flex flex-col min-h-0">
+                <AppTopNav :user="auth.user" />
+                <main class="flex flex-1 flex-col overflow-y-auto bg-white px-4 pb-24 sm:px-8 lg:px-16">
+                    <div aria-hidden="true" class="pointer-events-none sticky top-0 z-30 h-8 flex-shrink-0 bg-white sm:h-12" />
+                    <slot />
+                </main>
+            </div>
+        </div>
+    </div>
+</template>
+
+<script setup lang="ts">
+import { useAppVersion } from '~/composables/useAppVersion'
+
+const auth = useAuthStore()
+const ui = useUiStore()
+const route = useRoute()
+const { version } = useAppVersion()
+
+// Close mobile sidebar on route change
+watch(() => route.path, () => {
+    ui.closeMobileSidebar()
+})
+</script>
+
+<style scoped>
+.sidebar-overlay-enter-active,
+.sidebar-overlay-leave-active {
+    transition: opacity 0.3s ease;
+}
+.sidebar-overlay-enter-from,
+.sidebar-overlay-leave-to {
+    opacity: 0;
+}
+</style>