feat(booterm): PTY session metadata, terminal registry, WS attach enhancements

- Add PTY session metadata tracking (title, description, parent agent)
- Extend terminal registry: structured session metadata
- Extend WS attach: session-aware WebSocket lifecycle
- Extend routes: terminals and sessions with metadata

apps/booterm/src/ws/attach.ts

@@ -9,9 +9,14 @@ import {
 } from '../pty/manager.js';
 import { attachPty } from '../pty/pty.js';
 import { getUser } from '../auth.js';
-import { register, unregister, appendOutput } from '../pty/registry.js';
+import { register, unregister, appendOutput, touchActivity, consumePendingMetadata } from '../pty/registry.js';
 
-export function registerWsAttachRoute(app: FastifyInstance, tmuxConfPath: string): void {
+export function registerWsAttachRoute(
+  app: FastifyInstance,
+  tmuxConfPath: string,
+  idleTimeoutSeconds?: number,
+  absoluteTimeoutSeconds?: number,
+): void {
   app.get<{
     Params: { sid: string; pid: string };
     Querystring: { cols?: string; rows?: string };
@@ -58,7 +63,25 @@ export function registerWsAttachRoute(app: FastifyInstance, tmuxConfPath: string
         return;
       }
 
-      register(sid, pid, session.project_path);
+      const pendingMeta = consumePendingMetadata(pid);
+      const regOpts: {
+        timeoutSeconds?: number;
+        absoluteTimeoutSeconds?: number;
+        description?: string;
+        parentAgent?: string;
+      } = {};
+      if (idleTimeoutSeconds && idleTimeoutSeconds > 0) regOpts.timeoutSeconds = idleTimeoutSeconds;
+      if (absoluteTimeoutSeconds && absoluteTimeoutSeconds > 0) regOpts.absoluteTimeoutSeconds = absoluteTimeoutSeconds;
+      if (pendingMeta) {
+        if (pendingMeta.description) regOpts.description = pendingMeta.description;
+        if (pendingMeta.parentAgent) regOpts.parentAgent = pendingMeta.parentAgent;
+      }
+      const hasRegOpts =
+        regOpts.timeoutSeconds !== undefined ||
+        regOpts.absoluteTimeoutSeconds !== undefined ||
+        regOpts.description !== undefined ||
+        regOpts.parentAgent !== undefined;
+      register(sid, pid, session.project_path, session.name ?? undefined, hasRegOpts ? regOpts : undefined);
 
       let handle: IPty;
       try {
@@ -108,6 +131,8 @@ export function registerWsAttachRoute(app: FastifyInstance, tmuxConfPath: string
         }
         // Feed the ring buffer for pattern-based search
         appendOutput(pid, data);
+        // Bump activity timestamp for idle-timeout tracking
+        touchActivity(pid);
       };
       handle.onData(onData);