- Bug 1: LOCKTIME_THRESHOLD was 5_000_000 instead of BIP-65 value 500_000_000
- Bug 2: PostgreSQL SUM(our_fees) failed on TEXT column; cast to BIGINT
- Bug 3: PostgreSQL locktime INTEGER (i32) widened to BIGINT (i64) with idempotent ALTER
- Translate 4 Italian error strings in xpub.rs to English
- Always log HTTP status code and response body from welist (info level)
- Log send_stats_report errors at call site instead of silently discarding
- Add 10s timeout to reqwest client to prevent indefinite hangs
- Apply clippy fixes (is_empty, if-let chains, dead_code, etc.)
- xpub.rs: Replace convert_xpub() unwrap() with Result propagation
- xpub.rs: Replace calculate_fingerprint() unwrap() with Result propagation
- xpub.rs: Replace get_bitcoincore_descriptor() unwrap() with Result/match
- xpub.rs: Fix new_address_from_xpub() call in bal-server.rs to handle Result
- xpub.rs: Add prefix validation in convert_xpub (xpub/ypub/zpub/tpub/vpub/upub)
- bal-pusher.rs: Remove parse().unwrap() on env var bool, use unwrap_or(false)
- bal-pusher.rs: Replace port try_into().unwrap() with safe u16::try_from match
- bal-pusher.rs: Add error logging for invalid port values in env vars
- All tests pass: cargo test (5 tests: 3 SQL + 2 panic regression)
- Build verified: cargo check --bin=bal-server --bin=bal-pusher (0 errors)
