v0.2.14 : aide Nushell, themes de couleurs et cadres blancs

- Aide facon Nushell : help <cmd>, <cmd> -h/--help, help, help commands,
  help --find <texte>, help <agent> (fiche info) - sections Usage/Flags/
  Command Type/Parameters/Input-output/Examples avec couleurs
- Commande version : tableau Nushell (commit, build, rustc, theme...) + --json ;
  build.rs pour commit/branche git ; -V reste la version courte
- Themes : --theme <nom> (default, ocean, sunset, forest, dracula, mono)
  + settings.theme dans la config ; activation VT Windows pour les couleurs
- Cadres blancs Nushell partages : list, search, status, doctor, ls/ps/
  where/get et menu d autocompletion Tab encadre (colonnes name/description)

src/commands/list_cmd.rs

@@ -2,7 +2,7 @@
 //! the whole catalog with --all.
 
 use super::*;
-use crate::output::{print_json, status_style, Table};
+use crate::output::{boxed_table, print_json, status_style};
 use crate::probe::ExternalInfo;
 use crate::state::InstalledEntry;
 use serde::Serialize;
@@ -50,18 +50,27 @@ pub fn run(app: &App, all: bool, category: Option<&str>) -> Result<i32> {
         return Ok(0);
     }
     let color = app.color();
-    let mut table = Table::new(vec!["NAME", "AGENT", "VERSION", "STATUS", "SOURCE", "PATH"]);
+    let theme = app.theme();
+    let mut table_rows = Vec::new();
     for r in &rows {
-        table.row(vec![
+        table_rows.push(vec![
             r.display_name.clone(),
             r.name.clone(),
             r.version.clone().unwrap_or_else(|| "—".to_string()),
-            status_style(&r.status, color),
+            status_style(&r.status, theme, color),
             r.source.clone(),
             r.path.clone().unwrap_or_else(|| "—".to_string()),
         ]);
     }
-    print!("{}", table.render());
+    print!(
+        "{}",
+        boxed_table(
+            vec!["NAME", "AGENT", "VERSION", "STATUS", "SOURCE", "PATH"],
+            table_rows,
+            theme,
+            color,
+        )
+    );
     if rows.is_empty() {
         app.log.info(if all {
             "no agents found"