refactor: unify agent session persistence

src/memory/store.ts

@@ -42,15 +42,15 @@ export class MemoryStore {
 
   constructor(
     private readonly baseDir = config.MEMORY_STORAGE_DIR,
-    private readonly historyDir = join(config.PERSISTENCE_HISTORY_DIR, "memory"),
+    private readonly backupDir = join(config.PERSISTENCE_BACKUP_DIR, "memory"),
   ) {}
 
   async initialize() {
     await ensureDirectory(this.baseDir);
     await ensureDirectory(join(this.baseDir, "users"));
     await ensureDirectory(join(this.baseDir, "workspaces"));
-    // 历史备份与正式数据分目录存放，便于排查和手工恢复。
-    await ensureDirectory(this.historyDir);
+    // 备份与正式数据分目录存放，便于排查和手工恢复。
+    await ensureDirectory(this.backupDir);
   }
 
   async upsert(scope: MemoryScope, key: string, draft: MemoryDraft) {
@@ -76,7 +76,7 @@ export class MemoryStore {
         this.filePath(scope, key),
         renderMemoryMarkdown(scope, entries),
         {
-          historyDir: this.historyDir,
+          backupDir: this.backupDir,
           rootDir: this.baseDir,
         },
       );
@@ -113,7 +113,7 @@ export class MemoryStore {
         this.filePath(scope, key),
         renderMemoryMarkdown(scope, entries),
         {
-          historyDir: this.historyDir,
+          backupDir: this.backupDir,
           rootDir: this.baseDir,
         },
       );
@@ -132,7 +132,7 @@ export class MemoryStore {
         this.filePath(scope, key),
         renderMemoryMarkdown(scope, next),
         {
-          historyDir: this.historyDir,
+          backupDir: this.backupDir,
           rootDir: this.baseDir,
         },
       );