- Changed walletPayloadObj from {mints, nutzap} object to [['mint',url],['privkey',hex]] tag-array
- Removed non-standard pubkey tag from 17375 public tags (belongs on kind 10019)
- Added parseWalletContent() helper that reads both new tag-array and legacy object formats
- Added migrateLegacyWalletEventIfNeeded() for one-time auto-migration of old wallets
- Bumped WORKER_REVISION to nip60-tagarray-fix-1 to force SharedWorker restart
- Added wallet-page.md plan for unified wallet.html (Bitcoin, Cashu, NWC, CLINK)