feat(plan): plan-task viewer shows Applicable Rules panel

frontend/src/views/TaskViewerView.vue

@@ -10,6 +10,7 @@ import type { Note } from "@/types/note";
 import type { TaskStatus } from "@/types/task";
 import StatusBadge from "@/components/StatusBadge.vue";
 import PriorityBadge from "@/components/PriorityBadge.vue";
+import PlanRulesPanel from "@/components/rules/PlanRulesPanel.vue";
 import TagPill from "@/components/TagPill.vue";
 import TableOfContents from "@/components/TableOfContents.vue";
 import ShareDialog from "@/components/ShareDialog.vue";
@@ -379,6 +380,12 @@ const subTaskProgress = computed(() => {
           @click="onBodyClick"
         ></div>
 
+        <!-- Applicable rules (plan tasks only) -->
+        <PlanRulesPanel
+          v-if="store.currentTask.task_kind === 'plan' && store.currentTask.project_id"
+          :project-id="store.currentTask.project_id"
+        />
+
         <!-- Sub-tasks -->
         <div v-if="subTasks.length" class="subtasks">
           <div class="subtasks-header">