Refine Decodex App account login status

[yvette-carlisle]

Summary

• add structured account recovery actions for refresh/login/probe states
• clarify Decodex App account row status labels and hide capacity on non-current accounts
• improve login code box contrast and stabilize compact email formatting

Verification

• swift test --package-path apps/decodex-app
• cargo test -p decodex accounts::tests::
• cargo make fmt-rust-check
• cargo make test-decodex-app-stage
• apps/decodex-app/script/build_and_run.sh --verify
• visual screenshot check of the account panel and login panel