docs: draft Play listing descriptions (#447)

Author: jjoonleo

docs/Google-Play-Listing-Copy.md

@@ -0,0 +1,98 @@
+# Google Play Listing Copy
+
+Draft status: ready for product/design review before pasting into Play Console.
+
+This copy is scoped to the shipped OnTime release build. Google Play currently
+limits short descriptions to 80 characters and full descriptions to 4,000
+characters. Avoid adding ranking, promotional, testimonial, or unverifiable
+claims during review.
+
+References:
+
+- [Create and set up your app - Play Console Help](https://support.google.com/googleplay/android-developer/answer/9859152?hl=en)
+- [Store listing practices - Play Console Help](https://support.google.com/googleplay/android-developer/answer/13393723?hl=en-EN)
+- [Metadata - Play Console Help](https://support.google.com/googleplay/android-developer/answer/9898842?hl=en)
+
+## Source Feature Checklist
+
+- Appointment creation and editing with date, time, place, travel time, spare
+  time, and preparation steps.
+- Home and weekly schedule views.
+- Monthly calendar view.
+- Preparation start prompt, early-start flow, active preparation screen, step
+  skip, completion, and early/late result.
+- App notifications, schedule alarm settings, default preparation settings,
+  sign-out, and account deletion controls.
+
+## English
+
+### Short Description
+
+Plan appointments, preparation steps, travel time, and reminders.
+
+### Full Description
+
+OnTime helps you turn appointments into a preparation plan.
+
+Add an appointment with its date, time, place, travel time, spare time, and
+preparation steps. OnTime calculates when preparation should begin, shows
+upcoming schedules on Home and Calendar, and sends reminders so you can start
+at the right moment.
+
+When it is time to prepare, follow each step on the preparation screen, skip
+steps when needed, or keep preparing after every step is done. OnTime tracks
+whether you are ready early or running late, then shows the result after you
+finish.
+
+Use OnTime to:
+
+- Create and edit appointments.
+- Set custom preparation steps and time for each step.
+- Add travel time and spare time before an appointment.
+- View today's appointments, weekly schedules, and a monthly calendar.
+- Start preparing early from Home or from a reminder.
+- Manage app notifications, alarm settings, default preparation, and account
+  controls.
+
+OnTime is built for people who want a practical way to prepare before they
+leave, without relying on memory alone.
+
+## Korean
+
+### Short Description
+
+약속과 준비 단계, 이동시간, 알림을 함께 관리하세요.
+
+### Full Description
+
+OnTime은 약속을 준비 계획으로 바꿔 주는 일정 준비 앱입니다.
+
+약속 날짜와 시간, 장소, 이동시간, 여유시간, 준비 단계를 입력하세요. OnTime은
+준비를 시작해야 하는 시간을 계산하고, 홈과 캘린더에서 일정을 보여 주며, 제때
+준비를 시작할 수 있도록 알림을 보냅니다.
+
+준비 시간이 되면 준비 화면에서 단계별로 진행하고 필요한 단계는 건너뛸 수
+있습니다. 모든 단계를 마친 뒤에도 더 준비할 수 있고, 종료하면 일찍 준비했는지
+늦었는지 결과를 확인할 수 있습니다.
+
+OnTime에서 할 수 있는 일:
+
+- 약속 만들기 및 수정
+- 준비 단계와 단계별 시간 설정
+- 약속 전 이동시간과 여유시간 추가
+- 오늘의 약속, 주간 일정, 월간 캘린더 확인
+- 홈 또는 알림에서 미리 준비 시작
+- 앱 알림, 일정 알람, 기본 준비과정, 계정 관리
+
+기억에만 의존하지 않고, 출발 전 준비 과정을 차분히 확인하고 싶은 사람을 위한
+앱입니다.
+
+## Product/Design Review Checklist
+
+- Confirm the English short and full descriptions match current product voice.
+- Confirm the Korean short and full descriptions match current product voice.
+- Confirm every listed feature is visible in the release candidate build.
+- Confirm no ranking, price, promotional, testimonial, or unsupported feature
+  claims were added during review.
+- Paste the approved localized copy into the Google Play Console main store
+  listing.

docs/Release-Checklist.md

@@ -70,4 +70,6 @@ OnTime.
 
 - Confirm the app name, short description, full description, screenshots,
   support contact, privacy policy, and category are ready for the target stores.
+- Use `docs/Google-Play-Listing-Copy.md` as the draft source for Google Play
+  short and full descriptions until product/design approve final copy.
 - Track any brand, icon, screenshot, or store copy gaps before submission.