Integrate Breez SDK Spark as a second wallet backend alongside NWC.
Users can create/restore a non-custodial Lightning wallet directly
in the app with seamless onboarding (no forced backup on first use).
- WalletProvider interface abstracts NWC and Spark backends
- WalletModeRepository persists active wallet mode
- SparkRepository wraps Breez SDK: connect, send, receive, transactions
- Wallet mode selection UI with back navigation
- Receive flow auto-detects payment via sync polling + SDK events
- Payment received success screen with auto-navigation
- Dynamic wallet provider resolution for zaps (no stale captures)
- Proper SDK lifecycle: disconnect on app exit, cleanup on teardown
- 60s connection timeout for Spark (vs 20s for NWC)
- Wallet-connected indicator works for both providers
- BIP39 mnemonic generation with bundled English wordlist
- ProGuard rules for UniFFI/JNA bindings
Add ObjectBox as a write-behind persistence layer for Nostr events.
Events flowing through the relay pipeline are asynchronously batched
and written to ObjectBox on Dispatchers.IO. The LRU cache remains the
hot read path — no startup seeding or feed changes in this PR.
What's persisted: user's own events (all kinds), notes (kind 1),
profiles (kind 0), reposts (kind 6), reactions (kind 7), and zap
receipts (kind 9735).
Search now merges LRU cache results with ObjectBox for cross-session
note search. Old events are pruned on startup (50k cap, 90-day TTL,
user's own events exempt).
The Daniel
Barry Deen