Raw provider codes shown in USDT deposit details and Copy Details #1503

Raw provider identifiers reach users in two places on the USDT cross-network deposit screens.

1. Deposit details: UsdtDepositsScreen.kt:474 renders detail.statusCode verbatim under the refund field. For a deposit that needs attention, users see standing_route_unavailable.
2. Copy Details text: UsdtSupportActions.kt:48 and :63 add Status: $status, which puts the enum name (BRIDGE_NEEDS_ATTENTION) in the text the user copies or sends to support.

Found during the device gate of #1494. The code is already on master.

Steps (local USDT fixture)

1. Create an Orchestra deposit and move it to needs attention with code standing_route_unavailable.
2. Open USDT Receive → Network → Cross-Network Deposits and open the deposit. The raw code appears under the refund field.
3. On a failed or needs-attention bridge, tap Copy Details. The clipboard holds Status: BRIDGE_NEEDS_ATTENTION.

Expected: a localized, human-readable reason in the UI. The copied text can keep the raw code for support if that is intended, but it should sit beside the readable status, not replace it.