[verified] feat: support monthly completion recurrence

frontend/src/style.test.ts

@@ -1370,10 +1370,13 @@ describe('unified floating add interaction', () => {
     expect(app).toContain('<span class="task-detail-field-label">重复</span><select v-model="selectedTaskRepeat"')
     expect(app).toContain('<option value="yearly">每年</option><option value="after_completion">完成后重复</option><option value="custom">自定义…</option>')
     expect(app).toContain('完成后 <input v-model="composeAfterCompletionDays"')
+    expect(app).toContain('v-model="composeAfterCompletionUnit"')
     expect(app).toContain('完成后 <input v-model="selectedAfterCompletionDays"')
-    expect(app).toContain('每次完成后，将截止时间顺延对应天数；首版永不结束')
+    expect(app).toContain('v-model="selectedAfterCompletionUnit"')
+    expect(app).toContain('<option value="days">天</option><option value="months">月</option>')
+    expect(app).toContain('月末会自动取目标月最后一天')
     expect(app).toContain('buildTaskRecurrencePayload(composeRepeat.value')
-    expect(app).toContain('buildTaskRecurrencePayload(value, { afterCompletionDays, repeatConfig: config })')
+    expect(app).toContain('buildTaskRecurrencePayload(value, { afterCompletionDays, afterCompletionUnit, repeatConfig: config })')
     expect(app).toContain("api(`/tasks/${task.id}/recurrence`)")
     const createBlock = app.slice(app.indexOf('async function submitTaskCompose()'), app.indexOf('function toggleSidebar()'))
     expect(createBlock).toContain("api('/tasks',")
@@ -1388,7 +1391,7 @@ describe('unified floating add interaction', () => {
     expect(saveBlock).toContain('if (!taskSaved.due_at) {')
     expect(saveBlock).toContain('selectedTaskRecurrence.value = null')
     expect(saveBlock).toContain("selectedTaskRepeat.value = 'none'")
-    expect(saveBlock).toContain('await saveRepeat(taskSaved, repeatValue, repeatConfig, afterCompletionDays, recurrence)')
+    expect(saveBlock).toContain('await saveRepeat(taskSaved, repeatValue, repeatConfig, afterCompletionDays, afterCompletionUnit, recurrence)')
     const dueRemovalBlock = saveBlock.slice(saveBlock.indexOf('if (!taskSaved.due_at) {'), saveBlock.indexOf('} else {'))
     expect(dueRemovalBlock).not.toContain('saveRepeat(')
     expect(saveBlock).toContain("selectedRepeatError.value = ''")