- Update RULES.md to document Blockscout as third allowed external service
- Remove DEBUG-conditional log threshold (DEBUG now only enables banner + test phrase)
- Add fallback in balanceLine() to prevent layout shift
- Show ISO datetime + relative age in all transaction list views
- Rename 'mnemonic' to 'recoveryPhrase' in all code identifiers and HTML IDs
- Deduplicate isoDate/timeAgo into helpers.js (single source of truth)
fixes#1
