Add logic on ReqResp handlers for sidecar reconstruction

[zilm13]

PR Description

Add logic on handlers size for reconstruction of sidecars from proofs on supernodes.
This PR includes:

• configuration flag to set border from which sidecars will be pruned (defaulted to Integer.MAX until tests and approval)
• DataColumnSidecar byRoot and byRange changes and tests
• fixes in test setup lead to some fixes in old tests

It's part of #10095

Fixed Issue(s)

Documentation

• I thought about documentation and added the doc-change-required label to this PR if updates are required.

Changelog

• I thought about adding a changelog entry, and added one if I deemed necessary.

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Note

Adds archive-backed reconstruction to DataColumnSidecars Req/Resp handlers and introduces a configurable sidecar retention window for supernodes.

• RPC/Networking:
  • Archive Reconstruction: Add DataColumnSidecarArchiveReconstructor and wire it through Eth2P2PNetworkBuilder → Eth2PeerManager → BeaconChainMethods into DataColumnSidecarsByRoot/ByRange handlers.
  • Handlers: On missing/pruned sidecars, attempt reconstruction using block + column index; respect canonical/finalized checks and request-scoped tracking via request hash.
  • Response Lifecycle: Extend ResponseCallback with alwaysRun; implement in RpcResponseCallback and LoggingResponseCallback to notify reconstructor on request completion.
• Config/CLI:
  • Add DEFAULT_DATA_COLUMN_SIDECAR_EXTENSION_RETENTION_EPOCHS with builder/getter and CLI flag --Xdata-column-sidecar-extension-retention-epochs.
• Services:
  • Plumb reconstructor into BeaconChainController (currently NOOP).
• Tests:
  • Update/add tests for new handlers behavior and response callback lifecycle (RpcResponseCallbackTest, by-root/by-range handler tests, wiring in factories/managers).

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