title: Accurate weight reclaim with frame_system::WeightReclaim and cumulus `StorageWeightReclaim` transaction extensions

doc:
  - audience: Runtime Dev
    description: |
      Since the introduction of transaction extension, the transaction extension weight is no longer part of base extrinsic weight. As a consequence some weight of transaction extensions are missed when calculating post dispatch weight and reclaiming unused block weight.

      For solo chains, in order to reclaim the weight accurately `frame_system::WeightReclaim` transaction extension must be used at the end of the transaction extension pipeline.

      For para chains `StorageWeightReclaim` in `cumulus-primitives-storage-weight-reclaim` is deprecated.
      A new transaction extension `StorageWeightReclaim` in `cumulus-pallet-weight-reclaim` is introduced.
      `StorageWeightReclaim` is meant to be used as a wrapping of the whole transaction extension pipeline, and will take into account all proof size accurately.

      The new wrapping transaction extension is used like this:
      ```rust
      /// The TransactionExtension to the basic transaction logic.
      pub type TxExtension = cumulus_pallet_weight_reclaim::StorageWeightReclaim<
             Runtime,
             (
                     frame_system::CheckNonZeroSender<Runtime>,
                     frame_system::CheckSpecVersion<Runtime>,
                     frame_system::CheckTxVersion<Runtime>,
                     frame_system::CheckGenesis<Runtime>,
                     frame_system::CheckEra<Runtime>,
                     frame_system::CheckNonce<Runtime>,
                     pallet_transaction_payment::ChargeTransactionPayment<Runtime>,
                     BridgeRejectObsoleteHeadersAndMessages,
                     (bridge_to_rococo_config::OnBridgeHubWestendRefundBridgeHubRococoMessages,),
                     frame_metadata_hash_extension::CheckMetadataHash<Runtime>,
                     frame_system::CheckWeight<Runtime>,
             ),
      >;
      ```

      NOTE: prior to transaction extension, `StorageWeightReclaim` also missed the some proof size used by other transaction extension prior to itself. This is also fixed by the wrapping `StorageWeightReclaim`.

crates:
- name: cumulus-primitives-storage-weight-reclaim
  bump: minor
- name: sp-runtime
  bump: patch
- name: polkadot-sdk
  bump: minor
- name: asset-hub-rococo-runtime
  bump: major
- name: asset-hub-westend-runtime
  bump: major
- name: bridge-hub-rococo-runtime
  bump: major
- name: bridge-hub-westend-runtime
  bump: major
- name: collectives-westend-runtime
  bump: major
- name: coretime-rococo-runtime
  bump: major
- name: coretime-westend-runtime
  bump: major
- name: people-rococo-runtime
  bump: major
- name: people-westend-runtime
  bump: major
- name: contracts-rococo-runtime
  bump: major
- name: frame-support
  bump: minor
- name: frame-executive
  bump: patch
- name: frame-system
  bump: major
- name: staging-xcm-builder
  bump: patch
- name: xcm-runtime-apis
  bump: patch
- name: cumulus-pallet-weight-reclaim
  bump: major
- name: polkadot-service
  bump: major
- name: westend-runtime
  bump: major
- name: frame-metadata-hash-extension
  bump: patch
- name: frame-system-benchmarking
  bump: major
- name: polkadot-sdk-frame
  bump: major
- name: rococo-runtime
  bump: major
- name: cumulus-pov-validator
  bump: patch
- name: penpal-runtime
  bump: major
- name: glutton-westend-runtime
  bump: major
- name: rococo-parachain-runtime
  bump: major