# TUI navigation repair

Validated on 2026-10-26 at 22:32 +02:00. Bounded maintenance; M9 remains
paused and unaccepted. No production, Alpine or VM execution was performed.

## Behavior and review

List Up/Down previously called the details-opening selection method. The repair
separates highlighting from opening: arrows update selection, Enter opens the
selected peer, and Esc returns to the list. Existing detail/help/message scrolling
is preserved. Unsupported peers remain inspectable without mutation identity.
Independent reviewer NAV-001 identified an initial-highlight mismatch; the repair
treats the renderer's implicit first row as current. Re-review closed NAV-001
with no remaining actionable scoped findings.

Regression coverage exercises initial Down, initial Up wrap, explicit selection,
Enter, Esc, scroll reset and unsupported peer inspection. Focused command
`cargo test --locked tui::terminal::tests::` passed 7/7.

## Integrated checks and identity

Rust/Cargo 1.97.1, native x86_64 GNU host. All commands exited 0:

- `cargo fmt --all -- --check`
- `cargo clippy --locked --all-targets -- -D warnings`
- `cargo test --locked`: 323 passed, 3 explicitly ignored, none failed,
  including 2 documentation tests. Ignored real-environment tests were not run.
- `cargo build --locked --release`
- `git diff --check`

Base commit: `f4a6540df9621c9c5e5d1430243f92e749356a59`. Dirty inputs include
the navigation repair plus pre-existing documentation/VM preparation changes;
the latter were preserved. SHA256 of changed Rust files:

- `src/tui/state.rs`: `3b9ea1540c26a372c781a8194cedff74bb56320a698ae28e56ce22f38d159c5d`
- `src/tui/terminal.rs`: `368bf0be11c35202127b7ac5c95f62a312f9de9b464de6e6816cb4b7523cdb1e`

Native artifact `target/release/wireguard-admin` SHA256:
`de5b7efe9f8615fcb13d8779a86451d62e64c3f1da976ba706d6773f8a573d9e`.
This is host build and fixture evidence only; target-server deployment and
interactive SSH confirmation remain unverified. Previous release artifact
identities do not identify this build.