refactor: remove fs/persist.go, inline calls to session package

- Delete fs/persist.go (thin wrappers no longer needed)
- handlers.go: call session.PersistSession() directly
- newroot.go: inline restore logic with AgentLog creation

fs/handlers.go

@@ -426,7 +426,7 @@ func agentBindings(ctx HandlerCtx) ([]Binding, error) {
 			},
 			Rename: func(newName string) error {
 				a.SetName(newName)
-				persistSession(globalRootState, sess.Name())
+				session.PersistSession(sess.Name())
 				return nil
 			},
 		})
@@ -727,7 +727,7 @@ func writeAgentName(ctx HandlerCtx, data []byte) error {
 		return nil
 	}
 	ctx.Agent.SetName(newName)
-	persistSession(globalRootState, ctx.Session.Name())
+	session.PersistSession(ctx.Session.Name())
 	return nil
 }
 

fs/newroot.go

@@ -77,7 +77,14 @@ func NewRoot(cfg Config) *Tree {
 	globalRootState = rs
 
 	// Restore persisted sessions from disk.
-	restoreAllSessions(rs)
+	for _, r := range session.RestoreAllSessions() {
+		node := rs.GetOrCreateNode(r.Session)
+		for _, ra := range r.Agents {
+			al := NewAgentLog(ra.Remote)
+			node.SetAgentLog(ra.ID, al)
+			replayMessagesToLog(al, ra.Messages)
+		}
+	}
 
 	return tree
 }

fs/persist.go

@@ -1,35 +0,0 @@
-package fs
-
-import (
-	"ollie/session"
-)
-
-// persistSession saves a session to disk.
-func persistSession(rs *RootState, name string) {
-	if err := session.PersistSession(name); err != nil {
-		rs.Cfg.Log.Error("persist session %s: %v", name, err)
-	}
-}
-
-// saveAllSessions persists all active sessions.
-func saveAllSessions(rs *RootState) {
-	session.SaveAllSessions()
-}
-
-// restoreAllSessions restores persisted sessions and wraps them with SessionNodes.
-func restoreAllSessions(rs *RootState) {
-	restored := session.RestoreAllSessions()
-	for _, r := range restored {
-		// Wrap in SessionNode
-		node := rs.GetOrCreateNode(r.Session)
-
-		// Create AgentLog for each agent
-		for _, ra := range r.Agents {
-			al := NewAgentLog(ra.Remote)
-			node.SetAgentLog(ra.ID, al)
-
-			// Replay messages to the AgentLog
-			replayMessagesToLog(al, ra.Messages)
-		}
-	}
-}