refactor(kebab-cli, kebab-tui): p9-fb-25 task 2 — SourceScope via ..Default::default()

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/kebab-cli/src/main.rs

@@ -326,8 +326,8 @@ fn run(cli: &Cli) -> anyhow::Result<()> {
             let cfg = kebab_config::Config::load(cli.config.as_deref())?;
             let scope = kebab_core::SourceScope {
                 root: root.clone().unwrap_or_else(|| PathBuf::from(&cfg.workspace.root)),
-                include: Vec::new(),
                 exclude: cfg.workspace.exclude.clone(),
+                ..Default::default()
             };
 
             // p9-fb-02: spawn the progress display on a background