[emma31-dev]

Description

Fixes #360 .

Retain recipient addresses as unchecked addresses until the wallet network is available, then validate them before converting them to scripts. create_tx, create_sp_tx --to, and create_dns_tx --to now reject addresses from a different network. create_sp_tx --to-sp also rejects silent payment codes whose network differs from the wallet’s.

Notes to the reviewers

The mismatch errors use BDKCliError::Generic with a formatted message rather than adding payload-carrying error variants. Carrying an address or silent payment code in new variants made BDKCliError large enough for Clippy’s result_large_err lint to fail across many functions.

Some integration tests used testnet tb1... recipients with regtest wallets. Those fixtures now use regtest addresses so the tests exercise their intended behavior instead of failing at network validation.

Checklists

All Submissions:

• I've signed all my commits
• I followed the contribution guidelines
• I ran cargo fmt
• I ran cargo clippy successfully before committing

Bugfixes:

• I've added tests to reproduce the issue which are now passing
• I'm linking the issue being fixed by this PR: create_tx accepts recipient addresses from the wrong network #360