Out of v1: accounts, login, and cloud sync

[beagle1903]

Status

Out of v1. Tracked for change management. Do not implement unless product scope changes.

What v1 chose instead

ADR 003 — Follows and snapshots live in Room on device. No login, no server.

ADR 006 — Followed codes (not snapshots) are mirrored to Download/com.burha.fundhelper-follows.json via MediaStore. Restore into Room only when the follow table is empty. hasFragileUserData=true. allowBackup=true. No extra dangerous permission, no import UI, no all-files access.

Update the APK with :app:installDebug / adb install -r. Do not uninstall to “refresh the icon” — that wiped the old follow list and that copy cannot be recovered.

What this issue would mean (not scheduled)

• Accounts / login
• Cloud sync / multi-device
• Any app backend (except the separate contingent TEFAS cache-backend issue)

Links

• ADR 003 + 006: https://github.com/beagle1903/fund-helper/blob/main/docs/decisions.md
• Follow durability spec: https://github.com/beagle1903/fund-helper/blob/main/docs/superpowers/specs/2026-08-25-follow-durability-design.md
• Follow durability plan: https://github.com/beagle1903/fund-helper/blob/main/docs/superpowers/plans/2026-08-25-follow-durability.md
• Product: https://github.com/beagle1903/fund-helper/blob/main/docs/context.md

Screenshots

[beagle1903]

Issue board (opened 2026-08-31)

v1 remaining

• QA: Günlük on the A23 (empty, airplane HATA, Temizle) #26 QA: Günlük on the A23
• Contingent: swap TefasClient if TEFAS/Akamai blocks the phone #27 Contingent: swap TefasClient if TEFAS/Akamai blocks

After A23 / Play

• Play Store listing, privacy policy, and financial-features declaration #28 Play listing, privacy policy, financial-features
• Store/SPK-facing disclaimer (in-app sentence stays off) #29 Store/SPK-facing disclaimer
• Contingent later: tiny TEFAS cache backend if the device cannot reach TEFAS #30 Contingent: TEFAS cache backend

Out of v1 (tracked, not scheduled)

• Out of v1: BES / BEFAS as primary universe #31 BES / BEFAS
• Out of v1: charts, sparklines, and date-range history #32 Charts
• Out of v1: holdings, TL amounts, and cost basis #33 Holdings / cost basis
• Out of v1: accounts, login, and cloud sync #34 Accounts / login / sync
• Out of v1: iOS (and other non-Android clients) #35 iOS
• Out of v1: LLM / chat consultant #36 LLM / chat
• Out of v1: buy/sell recommendations (hard product rule) #37 Buy/sell recommendations

Milestones: https://github.com/beagle1903/fund-helper/milestones