fix: add name= field to agent/new template, support in CreateAgent

- Added name= as the first field in agent/new read template
- CreateAgent now accepts name= as alias for agent_alias=
- gofmt formatting fixes

fs/session/create.go

@@ -74,6 +74,7 @@ func CreateAgent(rs *rootState, sessName string, args []string) error {
 	cwd := ""
 	remoteTarget := ""
 	systemPromptOverride := ""
+	name := ""
 	for _, arg := range args {
 		k, v, ok := strings.Cut(arg, "=")
 		if !ok {
@@ -83,6 +84,8 @@ func CreateAgent(rs *rootState, sessName string, args []string) error {
 			continue
 		}
 		switch k {
+		case "name":
+			name = v
 		case "backend":
 			backendOverride = v
 		case "model":
@@ -98,10 +101,15 @@ func CreateAgent(rs *rootState, sessName string, args []string) error {
 		case "system_prompt":
 			systemPromptOverride = v
 		default:
-			return fmt.Errorf("unknown option %q (valid: backend, model, agent, agent_alias, cwd, remote, system_prompt)", k)
+			return fmt.Errorf("unknown option %q (valid: name, backend, model, agent, agent_alias, cwd, remote, system_prompt)", k)
 		}
 	}
 
+	// If name is provided but no agent_alias, use name as alias.
+	if name != "" && agentAlias == "" {
+		agentAlias = name
+	}
+
 	rs.mu.RLock()
 	sess, ok := rs.sessions[sessName]
 	rs.mu.RUnlock()

fs/session/root.go

@@ -480,7 +480,7 @@ func rootOpen(rs *rootState, name string) (File, error) {
 						if agentResult != "" {
 							return []byte(agentResult + "\n"), nil
 						}
-						return []byte("cwd=\nbackend=\nmodel=\nagent=\nagent_alias=\nremote=\nsystem_prompt=\n"), nil
+						return []byte("name=\ncwd=\nbackend=\nmodel=\nagent=\nagent_alias=\nremote=\nsystem_prompt=\n"), nil
 					},
 					WriteFn: func(data []byte) error {
 						if err := CreateAgent(rs, sessID, strings.Fields(strings.TrimSpace(string(data)))); err != nil {