fix(mobile): address v0.6.0-beta user-test feedback (ENG-511)

[islandbitcoin]

In-the-wild user testing on v0.6.0-beta surfaced several first-impression issues. This bundles the quick wins with the blank Cash Wallet bug. Tracked under ENG-511.

Changes

ENG-512 — never render a blank Cash Wallet (bug)

formatBalance in wallet-overview.tsx overwrote the Cash balance with ""/undefined when the price-conversion query lost a race on fresh login (or the Cash wallet was briefly missing mid USD→USDT cutover). The Cash <Balance> has no emptyText, so it collapsed to an empty box — looking broken on the very first screen after login. Now we only write a real value (keeping the cached/"0" balance otherwise) and recompute once price conversion resolves.

Home-screen noise (#2, #3)

• Removed the "Non-custodial wallets" and "Get a Flashcard" QuickStart cards.
• Moved the "Add Flashcard" action into Settings → Ways to get paid → Flashcard. The home wallet-overview Flashcard row now only renders when a card is linked, so the "Add Flashcard" prompt no longer adds noise for users without one (card-holders still see their balance).

Auto-capitalize name/address fields (#8)

autoCapitalize="words" on Full Name, Bank Name, Account Owner, Street, City; "characters" on US State/Country codes — in the account-upgrade and Bridge external-account forms. Email/username/number fields left untouched.

Verification

• tsc -p . passes. No new eslint errors introduced (the touched files carry pre-existing lint debt unrelated to this change; eslint is not part of the check-code CI gate).
• ⚠️ ENG-512 is a timing bug fixed by code reasoning — not yet verified on-device. Worth a QA pass on a slow/flaky connection (fresh login) and on mid-cutover accounts before closing ENG-512.

Refs ENG-511, ENG-512

🤖 Generated with Claude Code

[linear]

ENG-512

ENG-511

ENG-517

[islandbitcoin]

Thanks for the thorough review — the diagnosis was right and the "one row short" framing was fair. Addressed the must-fixes, added the test, cleaned up the minors, and filed the staleness follow-up.

① Flashcard row race — fixed (9f919884)

Applied the exact Cash/BTC treatment to the flashcard row: added cardDisplayBalance to persistent state, seed the row from it, and only overwrite when the converted value is truthy; the format effect now also refires on balanceInSats. So a linked card keeps its cached balance on cold start instead of flipping to the cardAdd / "Add Flashcard" empty state during the price-not-ready window — the row this PR was about.

② Bridge state/country normalization — fixed (9f919884)

handleSubmit now normalizes at submit rather than trusting the keyboard hint: state/country → .trim().toUpperCase() (Bridge expects ISO codes — 2-char state, 3-char country), plus .trim() on the free-text fields. Kept autoCapitalize as a harmless UX hint.

③ Regression test — added (9f919884)

__tests__/components/wallet-overview.spec.tsx (first test for these modules): with the converter returning undefined, the cached balance survives (doesn't blank); once it resolves, the row updates and drops the stale value.

④ Stale money has no expiry — follow-up: ENG-517

Agreed, and the guard arguably entrenches it (the card now also never blanks). Bounding it properly — a last-success timestamp + a staleness affordance — is separate work, tracked in ENG-517 rather than reverting to blanking here.

Minors — fixed (abc69b47)

• Settings row now uses LL.SettingsScreen.flashcard() (new key) instead of borrowing HomeScreen.flashcard().
• Removed the four orphaned HomeScreen keys (flashcardTitle / flashcardDesc / nonCustodialWalletTitle / nonCustodialWalletDesc); regenerated i18n-types.ts + raw-i18n/source/en.json via typesafe-i18n.
• Standardized the flashcard sync button on readFlashcard().