refactor : rename TaskType to TaskTag across the stack

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

frontend/components/task/TaskCard.vue

@@ -7,7 +7,10 @@
         @click="emit('click')"
     >
         <div class="flex items-start justify-between gap-2">
-            <h4 class="text-sm font-semibold text-neutral-900">{{ task.title }}</h4>
+            <div class="min-w-0">
+                <span v-if="task.project && task.number" class="text-xs font-medium text-neutral-400">{{ task.project.code }}{{ task.number }}</span>
+                <h4 class="text-sm font-semibold text-neutral-900">{{ task.title }}</h4>
+            </div>
             <button
                 class="shrink-0 transition-colors"
                 :class="isTimerOnTask ? 'text-[#F18619] hover:text-[#d97314]' : 'text-neutral-400 hover:text-primary-500'"
@@ -26,12 +29,12 @@
                 {{ task.priority.label }}
             </span>
             <span
-                v-for="type in task.types"
-                :key="type.id"
+                v-for="tag in task.tags"
+                :key="tag.id"
                 class="rounded-full px-2 py-0.5 text-xs font-semibold text-white"
-                :style="{ backgroundColor: type.color }"
+                :style="{ backgroundColor: tag.color }"
             >
-                {{ type.label }}
+                {{ tag.label }}
             </span>
             <span
                 v-if="task.assignee"