Map HolderNotEligible and fix the token-pause copy in the dapp and console #340

User story / Problem statement

Currently, the dapp and the console map 304 for claim_redeem refusals and its pause copy says the token pause stops returns of escrowed shares. Once #321's contracts land, that refusal is 6073 HolderNotEligible and escrow returns ignore the pause.

Expected outcome

The dapp and the console name HolderNotEligible on the affected claim and describe the pause as a trading-only restriction.

Acceptance criteria

• TransactionModal maps 6073 for claim_redeem
• Pause copy in pages/emergency.ts no longer mentions escrowed-share returns
• Pause copy in TransactionModal.tsx matches

Technical notes

• claimRedeemContractErrorReason in TransactionModal.tsx maps 304 today
• 6073 = HolderNotEligible: a delisted holder's zero-asset claim, or a return the compliance rules refuse

Additional context

Follow-up to #264 / #321.