feat(signing): add Cosmos SIGN_MODE_DIRECT support #693
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Add SDK support for signing Cosmos SDK transactions using the SIGN_MODE_DIRECT protobuf encoding. - Add signCosmosDirect() API function - Add COSMOS encoding type (requires firmware v0.18.9+) - Add COSMOS_DERIVATION path (m/44'/118'/0'/0/0) - Add e2e tests for Cosmos signing
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Summary
Add SDK support for signing Cosmos SDK transactions using the SIGN_MODE_DIRECT protobuf encoding.
🔧 Context / Implementation
🧪 Test Plan
🖼️ Screenshots (if applicable)