Refactor `ChainQuery` to be more flexible #2139

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evanlinjin wants to merge 15 commits intobitcoindevkit:masterfrom

evanlinjin:refactor/sans-io-mtp-chain-query

Commits on Mar 6, 2026

refactor(chain)!: introduce `CanonicalizationTask`
oleonardolima
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refactor(chain)!: use `CanonicalizationTask` instead of `CanonicalIter`
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refactor(chain)!: remove `canonical_iter` module
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refactor(core,chain)!: extract generic `ChainQuery` trait from `CanonicalizationTask`

oleonardolima
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claude
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refactor(chain)!: generalize `ChainQuery` trait with generic type
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refactor(chain): use single queue for `anchored_txs` in canonicalization
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refactor(chain)!: introduce stage based canonicalization processing

oleonardolima
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claude
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refactor(core,chain)!: consolidate state machine into `next_query` loop

evanlinjin
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refactor(chain)!: split canonicalization into two tasks with generic `Canonical<A, P>`

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refactor(core,chain)!: move `chain_tip` from `ChainRequest` to `ChainQuery::tip()`

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refactor(core)!: remove generics from `ChainQuery`, `ChainRequest`, `ChainResponse`

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fix(chain): check anchors for assumed txs in `CanonicalViewTask`

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refactor(chain): split `canonical_view.rs` into `canonical.rs` + `canonical_view_task.rs`

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oleonardolima
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Commits on Mar 8, 2026

chore(chain,example)!: Remove `ChainOracle` and fix docs
evanlinjin
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Commits on Mar 13, 2026

refactor(core,chain)!: redesign `ChainQuery` as a sans-IO task trait
evanlinjin
committed