quick wins (issues #9 #10 #11 #12 #13 #16) : am logs (tail+follow), am list --running/--sort, am config set, am alias add/remove/list, dedup historique, am open

src/commands/list_cmd.rs

@@ -25,7 +25,13 @@ struct AgentRow {
 }
 
 /// run: installed agents only, unless all is set (whole catalog).
-pub fn run(app: &App, all: bool, category: Option<&str>) -> Result<i32> {
+pub fn run(
+    app: &App,
+    all: bool,
+    category: Option<&str>,
+    running: bool,
+    sort: Option<&str>,
+) -> Result<i32> {
     let entries = app.state.all().unwrap_or_default();
     let probe = crate::probe::detect_externals(app);
     let mut rows: Vec<AgentRow> = Vec::new();
@@ -43,7 +49,15 @@ pub fn run(app: &App, all: bool, category: Option<&str>) -> Result<i32> {
     if !all {
         rows.retain(|r| r.status == "running" || r.status == "installed" || r.status == "external");
     }
-    rows.sort_by(|a, b| a.name.cmp(&b.name));
+    if running {
+        rows.retain(|r| r.status == "running");
+    }
+    match sort {
+        Some("version") => rows.sort_by(|a, b| b.version.cmp(&a.version)),
+        Some("status") => rows.sort_by(|a, b| a.status.cmp(&b.status)),
+        Some(other) => bail!("invalid sort key '{other}' — expected name, version or status"),
+        None => rows.sort_by(|a, b| a.name.cmp(&b.name)),
+    }
 
     if app.json() {
         print_json(&rows);