Create/Modify MIP Proposal

Steps

1. Ask user for: MIP number, target chain, reference proposal (if any)
2. Run git branch --show-current — refuse to proceed if on main
3. Check existing MIP naming pattern: ls src/proposals/
4. Load chain addresses from config files (never hardcode addresses)
5. After code changes, run forge build to verify compilation
6. Run forge test --match-contract <MIPName> to verify tests pass
7. Show diff summary before committing

Rules

• Storage variables in build() must be initialized from chain config addresses
• Duration calculations: always show math explicitly for user verification
• Follow existing naming convention exactly