v1.0.4

• ignore extraneous fields on GetLatestLedgerResult response since we only use it for block number (sequence)
• Update firehose-core module to latest version
• Update BLOCK_TO_FETCH in test
• Add "keep" flag to fetcher log for improved debugging
• Expand fetch statistics with total times and inter-call delays
• Add block fetch performance tracking and statistics logging
• Update module dependencies and Go version (go-stellar-sdk: 20251210134752-6c46f8811c13)
• Add V0 transaction support
• Add is-mainnet flag for network passphrase selection
• remove dependency on getTransaction only rely on getLegder.