feat(headless): enrich context output with decision summary and agent IDs

src/headless.rs

@@ -1055,8 +1055,20 @@ pub fn context() {
         .and_then(|d| d["cycle"].as_u64())
         .unwrap_or(0);
 
+    // Session with last decision summary
+    let last_decision_line = std::fs::read_to_string(&dec_path).ok()
+        .and_then(|s| serde_json::from_str::<serde_json::Value>(&s).ok())
+        .and_then(|d| d["decision"].as_str().map(|t| {
+            t.lines().filter(|l| !l.starts_with('#') && !l.is_empty()).next()
+                .unwrap_or("").to_string()
+        }))
+        .unwrap_or_default();
+
     println!("[session]");
     println!("sessions: {session_count}  last_cycle: {cycle}");
+    if !last_decision_line.is_empty() {
+        println!("last: {last_decision_line}");
+    }
 
     println!("\n[git]");
     println!("branch: {branch}");
@@ -1089,10 +1101,21 @@ pub fn context() {
                 println!("(none)");
             } else {
                 for a in &agents {
+                    let id = a["id"].as_u64().unwrap_or(0);
                     let name = a["name"].as_str().unwrap_or("?");
                     let c = a["conclusion"].as_str().unwrap_or("?");
-                    let summary = a["summary"].as_str().unwrap_or("");
-                    println!("  {name} [{c}] {summary}");
+                    let icon = match c { "success" => "✓", "error" | "stopped" => "✗", _ => "●" };
+                    println!("  {icon} {name} [{c}]");
+                    // Show first 2 meaningful lines from detail file
+                    if let Ok(detail) = std::fs::read_to_string(format!("{STATE_DIR}/{id}.json")) {
+                        if let Ok(d) = serde_json::from_str::<serde_json::Value>(&detail) {
+                            let result = d["result"].as_str().unwrap_or("");
+                            for line in result.lines().filter(|l| !l.is_empty()).take(2) {
+                                let short: String = line.chars().take(70).collect();
+                                println!("    {short}");
+                            }
+                        }
+                    }
                 }
             }
         }
@@ -1127,7 +1150,7 @@ pub fn context() {
         if let Ok(entries) = serde_json::from_str::<Vec<serde_json::Value>>(&content) {
             if !entries.is_empty() {
                 println!("\n[commands]");
-                for e in entries.iter().rev().take(10) {
+                for e in entries.iter().rev().take(3) {
                     let tool = e["tool"].as_str().unwrap_or("?");
                     let cmd = e["command"].as_str().unwrap_or("");
                     let ok = if e["ok"].as_bool() == Some(true) { "✓" } else { "✗" };