[Emergency Release] v5.48.0

[github-actions]

• fix(icons): show USDT0's icon, for new and existing users (fix(icons): show USDT0's icon, for new and existing users (v5.48.0 backport) #2998)
• feat: add USDT0 launch banner and promo sheet to Home (feat: add USDT0 launch banner and promo sheet to Home (v5.48.0 backport) #2997)

[Copilot]

Pull request overview

Prepares extension metadata for emergency release v5.48.0, but does not yet include or describe the emergency fix.

Changes:

• Bumps extension package version to 5.48.0.
• Updates Manifest V3 version fields.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
extension/package.json	Bumps package version.
extension/public/static/manifest/v3.json	Bumps browser extension versions.

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[github-actions]

PR Preview build is ready: https://github.com/stellar/freighter/releases/tag/untagged-aad3356b6cd8cbfd5022 (SDF collaborators only — install instructions in the release description)

[Copilot]

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Suppressed comments (1)

extension/src/background/messageListener/handlers/getCachedAssetIconList.ts:58

• Filtering these entries only from the response leaves each stale null on disk. When the subsequent lookup succeeds through issuer metadata rather than a token list, getAssetIcons updates only Redux and never replaces the background entry, so every popup reload repeats the token-list, Horizon, and stellar.toml lookups. Please migrate/delete stale nulls and persist successful fallback results (or use an expiring negative-cache entry) instead of permanently hiding them at read time.

    icons: Object.fromEntries(
      Object.entries(assetIconCache).filter(([, iconUrl]) => iconUrl),

[Copilot]

Pull request overview

Copilot reviewed 20 out of 23 changed files in this pull request and generated 3 comments.

Suppressed comments (2)

extension/src/background/messageListener/handlers/getCachedAssetIconList.ts:59

• Filtering every negative-cache entry here makes every genuinely iconless asset a fresh miss whenever the popup is reopened. The icon-enabled send, swap, history, and asset-management flows then repeat token-list, Horizon, and potentially stellar.toml requests indefinitely. Preserve negative entries with an expiry, or migrate only the affected stale USDT0 entry while changing the write path so failures cannot become permanent.

    icons: Object.fromEntries(
      Object.entries(assetIconCache).filter(([, iconUrl]) => iconUrl),
    ),

extension/src/popup/components/account/Usdt0LaunchBanner/index.tsx:50

• The local dismissed state changes only after persistence succeeds, so a transient messaging/storage failure makes the X button appear to do nothing. Hide the banner optimistically before awaiting persistence, as useDiscoverWelcome.ts:28-35 does; a later popup can show it again if the write failed.

  const handleDismiss = async () => {
    try {
      const { isDismissed } = await dismissUsdt0LaunchBanner();
      setIsDismissed(isDismissed);
    } catch (error) {