Add buttons/flows for `pay_premium` and `deposit_liquidity` on the dashboard, wired to the SDK + wallet, with refresh on success.
Acceptance criteria
- Both actions submit real transactions and refresh vault/policy state.
- Disabled states when no wallet is connected.
Add buttons/flows for `pay_premium` and `deposit_liquidity` on the dashboard, wired to the SDK + wallet, with refresh on success.
Acceptance criteria