feat(cct-sdk): Add accept admin evm op

[apedrob]

What

• Add acceptAdmin to EVMTokenManager, encoding acceptAdminRole. Completes the two-step admin transfer flow.

Why

• Closes the registry flow on Token Admin Registry

Testing

• Unit tests cover the encoding, the cases where nothing is pending or the caller is not the pending administrator + wallet binding

[vercel]

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[aelmanaa]

✅ APPROVE — acceptAdmin (EVM)

Head d9aa28f · base feature/DAPP-10818-evm-transfer-admin. ✅ APPROVE — 0 blockers.

Tested live on Sepolia (token 0x6a2674…597FE):

• accept completes registration: tx (admin set, pending cleared)

• W2 handoff accept: tx

• non-pending caller rejected pre-flight with the named CCTParamsInvalidError (not raw OnlyPendingAdministrator)

• 17/17 op tests · npm run check exit 0

Comments: none op-specific — the earlier untyped-read/unnamed-error issue is fixed here.

Cross-cutting (not this PR): TokenManager base declares no abstract admin ops, so EVM↔Solana admin-op parity is convention, not compiler-enforced.