feat: sync memory with filesystem tree (#685)

Co-authored-by: Letta <noreply@letta.com>
Co-authored-by: cpacker <packercharles@gmail.com>

src/agent/memory.ts

@@ -15,9 +15,9 @@ export const GLOBAL_BLOCK_LABELS = ["persona", "human"] as const;
  * Block labels that are stored per-project (local to the current directory).
  */
 export const PROJECT_BLOCK_LABELS = [
-  "project",
   "skills",
   "loaded_skills",
+  "memory_filesystem",
 ] as const;
 
 /**
@@ -37,7 +37,11 @@ export type MemoryBlockLabel = (typeof MEMORY_BLOCK_LABELS)[number];
  * Block labels that should be read-only (agent cannot modify via memory tools).
  * These blocks are managed by specific tools (e.g., Skill tool for skills/loaded_skills).
  */
-export const READ_ONLY_BLOCK_LABELS = ["skills", "loaded_skills"] as const;
+export const READ_ONLY_BLOCK_LABELS = [
+  "skills",
+  "loaded_skills",
+  "memory_filesystem",
+] as const;
 
 /**
  * Block labels that should be isolated per-conversation.