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Refactor `ChainQuery` to be more flexible - #2139

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evanlinjin wants to merge 9 commits into

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

Open

Refactor `ChainQuery` to be more flexible #2139
evanlinjin wants to merge 9 commits into
bitcoindevkit:masterfrom
evanlinjin:refactor/sans-io-mtp-chain-query

Commits on Nov 11, 2026
- refactor(core,chain)!: redesign `ChainQuery` to sans-io `ChainTask`
  
  evanlinjin
  and
  claude
  committed
  760d368
- refactor(core,chain): extract `BlockQueries::resolve_candidates`
  
  evanlinjin
  and
  claude
  committed
  acca4fb
- refactor(core,chain): share `median_time_past` across MTP call sites
  
  evanlinjin
  and
  claude
  committed
  7cdb0c8
- docs(chain): document that MTP needs a contiguous 11-block window
  
  evanlinjin
  and
  claude
  committed
  6c3ba12
- docs(core,chain): tighten the `ChainTask` driver contract
  
  evanlinjin
  and
  claude
  committed
  c40e419
- feat(core): derive `Debug` for `BlockQueries`
  
  evanlinjin
  and
  claude
  committed
  a7d75c5
- fix(chain): report the best-known mempool `last_seen`, not a lossy one
  
  evanlinjin
  and
  claude
  committed
  8e10dfa
- refactor(core,chain)!: pin `BlockQueries` to a chain tip
  
  evanlinjin
  and
  claude
  committed
  333f081
- feat(chain)!: check timelocks in the view, not the caller
  
  evanlinjin
  and
  claude
  committed
  4717748