feat(portal) : add drag & drop status change on client ticket kanban

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

frontend/pages/projects/[id]/index.vue

@@ -4,11 +4,6 @@
             <div class="flex items-center justify-between gap-3">
                 <h1 class="text-xl font-bold text-primary-500 sm:text-2xl">{{ project?.name ?? '' }}</h1>
                 <div class="flex items-center gap-2">
-                    <ProjectClientTickets
-                        v-if="project"
-                        :project-id="projectId"
-                        :project-name="project.name"
-                    />
                     <button
                         class="shrink-0 rounded-md bg-primary-500 px-3 py-2 text-xs font-semibold text-white hover:bg-secondary-500 sm:px-4 sm:text-sm"
                         @click="openTaskCreate"