events : instrumentation start/stop/run/install/update/uninstall/doctor/repl/shell (issue #3) - un evenement JSONL par action reelle, dry-run sans evenement, session id sur start, duree et exit code sur stop/run

src/commands/install_cmd.rs

@@ -2,6 +2,7 @@
 //! installer, and record the installation in the state database.
 
 use super::*;
+use crate::events::{Event, EventKind};
 use crate::installers;
 use crate::runner::SystemRunner;
 use anyhow::{anyhow, bail, Result};
@@ -137,6 +138,11 @@ pub fn run(app: &App, agent_name: &str, method_sel: Option<&str>, force: bool) -
     let entry = installers::make_entry(agent, method, &outcome, app);
     let version = entry.version.clone().unwrap_or_else(|| "unknown".to_string());
     app.state.set(&entry)?;
+    app.emit(
+        &Event::now(EventKind::Install)
+            .with_agent(agent.name.clone())
+            .with_args(vec![format!("method={}", method.kind)]),
+    );
     app.log.success(&format!(
         "installed {} (v{version}) in {}",
         agent.title(),