feat: surface memfs_enabled in headless init message (#955)

src/headless.ts

@@ -910,6 +910,7 @@ export async function handleHeadlessCommand(
       mcp_servers: [],
       permission_mode: "",
       slash_commands: [],
+      memfs_enabled: settingsManager.isMemfsEnabled(agent.id),
       uuid: `init-${agent.id}`,
     };
     console.log(JSON.stringify(initEvent));
@@ -1973,6 +1974,7 @@ async function runBidirectionalMode(
     model: agent.llm_config?.model,
     tools: availableTools,
     cwd: process.cwd(),
+    memfs_enabled: settingsManager.isMemfsEnabled(agent.id),
     uuid: `init-${agent.id}`,
   };
   console.log(JSON.stringify(initEvent));

src/types/protocol.ts

@@ -88,6 +88,7 @@ export interface SystemInitMessage extends MessageEnvelope {
   mcp_servers: Array<{ name: string; status: string }>;
   permission_mode: string;
   slash_commands: string[];
+  memfs_enabled?: boolean;
   // output_style omitted - Letta Code doesn't have output styles feature
 }