[AHM] PoC for D-Day governance rescue feature on CollectivesWestend#8141

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bkontur wants to merge 32 commits intomasterfrom

bko-ahm-dday-governance-poc

Commits on Jul 24, 2025

Extract `StorageProofChecker` utility from `bridges` to `substrate/frame`
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Add TODO for `ProvingTrie` trait
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Add `pallet-proofs-voting` voting by storage/trie proofs (copied from conviction-voting)
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Added simple `pallet-proofs-storage` for storing requirements for proofs validation.
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Add DDay referenda/voting setup for collectives-westend
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AssetHubWestend hook to send DDay data to Collectives
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Integration test for Collectives that "is AssetHub stalled" detection works
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Clean-up: proofs-storage -> dday-detection
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Clean-up: Refactored dday-voting + total/inactive issuance from the proof
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Clean-up: proofs-voting -> dday-voting
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Add transaction extension `SkipCheckIf`, that can skip other transaction extentions according to the filter
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Add `SkipCheckIf` for `CheckNonce` when AH stalled and valid proof (so user does not need balance on Collectives)
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Add missing `ChargeTransactionPayment` and `CheckMetadataHash` for completness
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Check that account does not exist at Collectives (means no balance).
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Update from github-actions[bot] running command 'fmt'

github-actions[bot]
authored and
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Setup DDay origins conversion to plurality for `SendXcmOrigin`
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Nit
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Revert "Extract `StorageProofChecker` utility from `bridges` to `substrate/frame`" (just reuse existing one from bridges to bring down PR diff noice)
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BACKPORT/REUSE some bridge stuff from different PRs:
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Re-implement `DDayHook` with `pallet_bridge_proof_root_sync`
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Update from github-actions[bot] running command 'fmt'

github-actions[bot]
authored and
bkontur
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Rebase nit
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Utility `EnsureIsStalled` for controlling submission of referenda
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Compilation after rebase
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Backport proof-root-store from bridges
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Commits on Jul 29, 2025

Refactor pallet-dday-voting
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Commits on Aug 1, 2025

WIP
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WIP
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Commits on Aug 2, 2025

Commits on Aug 3, 2025

Add `OnSystemEvent` callback for storing relaychain state_root for DDay
bkontur
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