…k discovery, logging, and metrics; include a simulated‑reorg test that verifies resync

  - feat(sequencer/providers): add reorg handling helper, counter, and test
  - Introduce handle_reorg(...) in eth_send_utils to:
      - Locate first common ancestor, log diverged blocks, and return fork height
      - List non_finalized_updates at/above fork for visibility
  - Add RpcProvider.reorgs_count with initialization to track detected reorgs
  - Extend test flow to simulate a reorg by mining a new branch:
      - Assert divergence at T1 and resync behavior (merkle_root_in_contract set, rb_indices refreshed)
      - Verify reorgs_count increments and abort loop cleanly
  - No changes to normal tx/receipt flow outside reorg handling paths

…rate file

… in config

…cluded in blocks that have been reorg-ed

…ct reorg updates are processed

…new blocks are found

…twork