Introduce ethereum token transfer processor

[dimartiro]

Description

Add procesor for ethereum incoming native token transfers + tests

Summary

• Introduce TokenTransferMessageProcessor to process the incoming token transfer messages from ethereum
  • Exhaustively check message to ensure we can process it
  • Process message, move money from sovereign -> destination account
• Tests

The logic to reward the relayer will be addressed in a different issue https://opslayer.atlassian.net/browse/MD-868

[github-actions]

WASM runtime size check:

Compared to target branch

dancebox runtime: 1420 KB (no changes) ✅

flashbox runtime: 824 KB (no changes) ✅

dancelight runtime: 2184 KB (+2184 KB) ⚠️

container chain template simple runtime: 1124 KB (-4296 KB) ✅

container chain template frontier runtime: 1400 KB (-5152 KB) ✅

[github-actions]

Coverage Report

(master)

@@                                          Coverage Diff                                          @@
##           agustin-ethereum-token-transfers-pallet   diego-inbound-eth-token-transfer      +/-   ##
=====================================================================================================
+ Coverage                                    66.04%                             66.14%   +0.10%     
+ Files                                          335                                339       +4     
+ Lines                                        58858                              59231     +373     
=====================================================================================================
+ Hits                                         38869                              39176     +307     
+ Misses                                       19989                              20055      +66     

Files Changed	Coverage
/chains/orchestrator-paras/runtime/common/src/migrations.rs	86.23% (+0.67%)	✅
/chains/orchestrator-relays/runtime/dancelight/src/bridge_to_ethereum_config.rs	86.49% (+29.35%)	✅
/chains/orchestrator-relays/runtime/dancelight/src/lib.rs	68.80% (+0.19%)	✅
/chains/orchestrator-relays/runtime/dancelight/src/tests/migrations_test.rs	97.47% (-1.57%)	❗
/pallets/external-validator-slashes/src/lib.rs	86.03% (-0.22%)	❗
/pallets/external-validators/src/lib.rs	90.44% (-0.41%)	❗
/primitives/bridge/src/symbiotic_message_processor.rs	92.86% (-0.69%)	❗

Coverage generated Wed Feb 5 00:47:18 UTC 2025