Integrate Bitcoin content into the /i/* external content system using NIP-73
identifiers (bitcoin:tx:{txid} and bitcoin:address:{address}).
- Add bitcoin-tx and bitcoin-address types to ExternalContent parser
- Create BitcoinTxHeader with mempool.space-style inputs/outputs flow view
- Create BitcoinAddressHeader with balance, stats, and recent transactions
- Add useBitcoinTx and useBitcoinAddress hooks (mempool.space Esplora API)
- Switch all Bitcoin API calls from blockstream.info to mempool.space
- Update WalletPage to link transactions to /i/bitcoin:tx:{txid} pages
- Remove unused blockExplorerAddress/blockExplorerTx config fields
- Add compact Bitcoin previews for embedded note contexts
Alex Gleason
e74cd1efbb