feat: schedule Fulu fork for Chiado testnet

[dapplion]

Summary

Sets FULU_FORK_EPOCH for the Chiado testnet (Gnosis Chain testnet).

• Epoch: 1353216
• Slot: 21651456
• Timestamp: 1773653580
• UTC: Mon Mar 16 2026 09:33:00

Matches the activation scheduled by other clients:

• Lighthouse: Schedule Fulu fork for Chiado testnet sigp/lighthouse#8954
• Nethermind: v1.36.1
• Erigon: [r33] Schedule Fusaka for Chiado erigontech/erigon#19681

[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request finalizes the scheduling of the Fulu network upgrade for the Chiado testnet. By setting the precise epoch and timestamp for the fork, it ensures compatibility and synchronization with other client implementations, facilitating a coordinated and smooth transition for the testnet.

Highlights

• Fulu Fork Scheduling: The Fulu fork has been scheduled for the Chiado testnet, setting its activation epoch to 1353216.
• Configuration Update: The FULU_FORK_EPOCH in the Chiado chain configuration was updated from Infinity to a specific epoch and timestamp, aligning with other client implementations.

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Changelog

• packages/config/src/chainConfig/networks/chiado.ts
  • Updated the FULU_FORK_EPOCH to 1353216 with the corresponding timestamp.

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[gemini-code-assist]

Code Review

This pull request schedules the Fulu fork for the Chiado testnet by setting the FULU_FORK_EPOCH to 1353216. This is a straightforward configuration update that aligns with the details provided in the pull request description. The change is consistent with how other network forks are defined in the configuration file.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 52.32%. Comparing base (cfc5790) to head (b54403d).
⚠️ Report is 1 commits behind head on unstable.

Additional details and impacted files

@@            Coverage Diff            @@
##           unstable    #9027   +/-   ##
=========================================
  Coverage     52.32%   52.32%           
=========================================
  Files           848      848           
  Lines         62518    62518           
  Branches       4603     4603           
=========================================
  Hits          32715    32715           
  Misses        29737    29737           
  Partials         66       66           

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[wemeetagain]

🎉 This PR is included in v1.41.0 🎉