agent-manager v0.2.0 : gestionnaire d'agents IA locaux

- CLI Rust (am) : list/install/uninstall/update/start/stop/restart/run/status/search/info/config/doctor/completion/export/import/self-update + shell interactif (Tab, historique)
- 9 methodes d'installation (npm, pip, uv, cargo, go, bun, curl, binary, git)
- catalogue de 72 agents, dependances, processus, securite (dry-run, checksums)
- sondes de version paralleles + cache (am list ~25 ms a chaud)
- installateurs one-liner : install.sh, install.ps1

src/commands/doctor_cmd.rs

@@ -0,0 +1,43 @@
+//! doctor command: render the environment report, optionally with --fix.
+
+use super::*;
+use crate::doctor::{self, Status};
+use crate::output::{print_json, status_style, Table};
+use crate::runner::SystemRunner;
+use anyhow::Result;
+
+pub fn run(app: &App, fix: bool) -> Result<i32> {
+    if fix {
+        let repaired = doctor::fix(app)?;
+        for r in &repaired {
+            app.log.success(r);
+        }
+        app.log.info("run 'am doctor' again to verify");
+        return Ok(0);
+    }
+    // The doctor report probes real tools, even under --dry-run.
+    let runner = SystemRunner::new(false, false, &app.log);
+    let report = doctor::run(app, &runner);
+    if app.json() {
+        print_json(&report.checks);
+        return Ok(if report.ok() { 0 } else { 1 });
+    }
+    let color = app.color();
+    let mut table = Table::new(vec!["CHECK", "STATUS", "DETAIL"]);
+    for c in &report.checks {
+        let status = match c.status {
+            Status::Ok => status_style("ok", color),
+            Status::Warn => status_style("warn", color),
+            Status::Error => status_style("error", color),
+        };
+        table.row(vec![c.name.clone(), status, c.detail.clone()]);
+    }
+    print!("{}", table.render());
+    if report.problems() > 0 {
+        app.log
+            .warn(&format!("{} problem(s) found — 'am doctor --fix' repairs what it can", report.problems()));
+    } else {
+        app.log.success("environment looks good");
+    }
+    Ok(if report.ok() { 0 } else { 1 })
+}