feat: complete structured CLI output

- unify human, plain, and JSON CLI output modes

- standardize diagnostics, lifecycle events, colors, quiet, and verbose handling

- preserve argument forwarding and improve CLI help and summaries

- document and release version 0.9.5

src/core/runner.rs

@@ -16,8 +16,7 @@
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 use crate::platform;
-use std::path::Path;
-use std::process::Command;
+use std::{path::Path, process::Command};
 
 /// Runs the built binary for a project, forwarding `bin_args`.
 ///