[Release] Smoke test release build on Android device

[jjoonleo]

Backlog ID: ISSUE-024
Source: plans/release_app_todos.md

Goal

Catch release-only crashes and configuration errors before Play review.

Parallelization

Status: blocked

Prerequisites

• [Release] Build a signed release Android App Bundle #452 - Requires a signed release AAB or release-equivalent install path.

Acceptance criteria

• Install release build through internal testing or a release-equivalent path.
• Test first launch, login, logout, schedule create/edit/delete, My Page, and privacy policy link.
• Verify production or approved release API endpoints are used.
• Record tested device model, Android version, build version, and results.

Codex thread guidance

• Work only on this issue's scope.
• Do not modify unrelated release issues.
• If this issue is blocked by external access or human approval, prepare the needed checklist/text and leave the issue open.
• Do not implement final closure until the prerequisites above are complete; prepare only unblocker notes if started early.