af75817d4bedbb5e148812d1073fd0729a23358b ref(tx_graph): Change last_seen to `HashMap<Txid, u64>` (valued mammal)
6204d2c766f968af6b63c664dda61fa8fc897e85 feat(tx_graph): Add method `txs_with_no_anchor_or_last_seen` (valued mammal)
496601b8b148afd2199a530d40edeafcb7967d46 test(tx_graph): Add test for `list_canonical_txs` (valued mammal)
c4057297a96ccbd49d984b7139994b801c2120dc wallet: delete method `insert_anchor` (valued mammal)
b34790c6b6d612661a4595bf10910294af862323 ref(tx_graph)!: Rename `list_chain_txs` to `list_canonical_txs` (valued mammal)
2ce4bb4dfc4f7b779a815eca45a3f6cee3d6c4e0 test(indexed_tx_graph): Add test_get_chain_position (valued mammal)
36f58870cb6eb24fe8c50ba4cf3ede910dd11fe8 test(wallet): Add test_insert_tx_balance_and_utxos (valued mammal)
bbc19c3536b25c78be8b5f3fe0cd9810aa679742 fix(tx_graph)!: Change tx_last_seen to `Option<u64>` (valued mammal)
324eeb3eb4e5231c6a81e6d197df788ad08b23a8 fix(wallet)!: Rework `Wallet::insert_tx` to no longer insert anchors (valued mammal)
Pull request description:
The PR changes the type of last_seen to `Option<u64>` for `txs` member of `TxGraph`.
This fixes an issue where unbroadcast and otherwise non-canonical transactions were returned from methods `list_chain_txs` and `Wallet::transactions` because every new tx inserted had a last_seen of 0 making it appear unconfirmed.
fixes#1446fixes#1396
### Notes to the reviewers
### Changelog notice
Changed
- Member `last_seen_unconfirmed` of `TxNode` is changed to `Option<u64>`
- Renamed `TxGraph` method `list_chain_txs` to `list_canonical_txs`
- Changed `Wallet::insert_tx` to take a single `tx: Transaction` as parameter
Added
- Add method `txs_with_no_anchor_or_last_seen` for `TxGraph`
- Add method `unbroadcast_transactions` for `Wallet`
### Checklists
#### All Submissions:
* [x] I've signed all my commits
* [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
* [x] I ran `cargo fmt` and `cargo clippy` before committing
#### Bugfixes:
* [x] This pull request breaks the existing API
* [x] I've added tests to reproduce the issue which are now passing
* [x] I'm linking the issue being fixed by this PR
ACKs for top commit:
notmandatory:
Re ACK af75817d4bedbb5e148812d1073fd0729a23358b
Tree-SHA512: e664b3b49e2f547873923f15dffbbc7fa032b6240e5b856b180e9e26123ca141864d10448912dc4a31bbb200c75bef4251a910a4330dac17ee6841b564612d13
a112b4d97c