fix: align engine RPC protocols between mainnet and sepolia configs

[Kewe63]

Summary

Aligns the Sepolia engine RPC protocols with the Mainnet configuration for consistency.

Problem

The Sepolia configuration had OP_NODE_L2_ENGINE_RPC as ws:// and BASE_NODE_L2_ENGINE_RPC as http://, which was the inverse of the Mainnet setup. This inconsistency could lead to confusion and potential health-check derivation failures.

Solution

• Swapped OP_NODE_L2_ENGINE_RPC to http://.
• Swapped BASE_NODE_L2_ENGINE_RPC to ws://.

Verification

• Verified that the protocol swap matches the documented Mainnet pattern.
• Ensured health-check URL derivation works correctly.

Impact

Improves configuration consistency across environments.

[qodo-code-review]

Review Summary by Qodo

Align engine RPC protocols between mainnet and sepolia configs

🐞 Bug fix

Walkthroughs

Description

• Swap engine RPC protocols in sepolia config to match mainnet
• OP_NODE_L2_ENGINE_RPC changed from ws:// to http://
• BASE_NODE_L2_ENGINE_RPC changed from http:// to ws://
• Fixes health-check URL derivation in base-consensus-entrypoint

Diagram

flowchart LR
  A["Sepolia Config"] -->|"OP_NODE_L2_ENGINE_RPC"| B["http://execution:8551"]
  A -->|"BASE_NODE_L2_ENGINE_RPC"| C["ws://execution:8551"]
  D["Health-check URL"] -->|"requires ws://"| C

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File Changes

1. .env.sepolia 🐞 Bug fix +2/-2

Swap engine RPC protocols in sepolia environment config

• OP_NODE_L2_ENGINE_RPC protocol changed from ws:// to http://
• BASE_NODE_L2_ENGINE_RPC protocol changed from http:// to ws://
• Aligns sepolia configuration with mainnet engine RPC setup
• Enables proper health-check URL derivation via protocol substitution

.env.sepolia

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[qodo-code-review]

Code Review by Qodo

🐞 Bugs (0) 📘 Rule violations (0) 📎 Requirement gaps (0)

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