feat(ui) : improve time-tracking UX, responsive tags, and task priority flag

- Add duplicate button in time entry drawer
- Make time entry blocks and list responsive (tags wrap, hide on narrow)
- Replace date filter input with calendar icon next to month title
- Fix scroll to current hour in calendar (use gridBodyEl)
- Show project color on ticket code in task cards and my-tasks
- Add red flag icon for high priority tasks in kanban and my-tasks

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

frontend/components/time-tracking/TimeEntryList.vue

@@ -7,7 +7,7 @@
         <div
             v-for="entry in sortedEntries"
             :key="entry.id"
-            class="group flex items-center gap-4 rounded-lg border border-neutral-200 bg-white px-4 py-3 cursor-pointer transition hover:border-neutral-300 hover:shadow-sm"
+            class="group flex items-center gap-2 sm:gap-4 rounded-lg border border-neutral-200 bg-white px-3 sm:px-4 py-3 cursor-pointer transition hover:border-neutral-300 hover:shadow-sm"
             @click="emit('editEntry', entry)"
         >
             <!-- Color bar -->
@@ -18,14 +18,14 @@
 
             <!-- Main info -->
             <div class="min-w-0 flex-1">
-                <div class="flex items-center gap-2">
-                    <span class="truncate text-sm font-semibold text-neutral-900">
-                        {{ entry.title || $t('common.untitled') }}
-                    </span>
+                <div class="truncate text-sm font-semibold text-neutral-900">
+                    {{ entry.title || $t('common.untitled') }}
+                </div>
+                <div v-if="entry.tags.length" class="mt-1 flex flex-wrap gap-1">
                     <span
                         v-for="tag in entry.tags"
                         :key="tag.id"
-                        class="shrink-0 rounded-full px-2 py-0.5 text-[10px] font-semibold text-white"
+                        class="rounded-full px-2 py-0.5 text-[10px] font-semibold text-white"
                         :style="{ backgroundColor: tag.color }"
                     >
                         {{ tag.label }}