## Summary
- hide Power for filter-controlled SDR backends where no hardware power command exists
- collapse the entire action group when the rig supports neither TX, hardware Power, nor Lock
- keep capability-specific group labels accurate
- top-align the rig/workspace selectors with the other header controls
## Verification
- JavaScript syntax validation
- `cargo fmt --all -- --check`
- `cargo test -p trx-frontend-http` (52 passed)
- `cargo clippy -p trx-frontend-http --all-targets -- -D warnings`
- `git diff --check`
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Summary
Verification
cargo fmt --all -- --checkcargo test -p trx-frontend-http(52 passed)cargo clippy -p trx-frontend-http --all-targets -- -D warningsgit diff --check