refactor(evm): governance proposal submission logic

[blockchainguyy]

why

how

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Note

Consolidates governance scheduling/cancellation and direct EOA execution into a single path and updates CLIs/docs.

• Introduces executeDirectlyOrSubmitProposal in utils.js to either execute on-chain or build/submit governance proposals; refactors gateway.js, its.js, and ownership.js to use it (e.g., transferGovernance, transferOperatorship, multicall for trusted chains, setPauseStatus, migrateInterchainToken, ownership actions)
• Adds --proposal-type <create|cancel> and clarifies governance flags/messages in cli-utils.ts; improves generate-only help text and activationTime description
• Extracts submitGovernanceProposals and processGovernanceProposals in governance.js; adjusts prompts, removes unused helpers, and streamlines main flows
• Removes per-script proposal aggregation/submission code; main() now defers to shared processors
• Updates docs (contract-ownership.md, governance-workflows.md) with cancel workflows, new flags, and file-output guidance

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