Key workspace status and ownership by ID, not directory

Multiple workspaces can share one checkout directory. Agent and terminal
status, sidebar tabs, and ownership now attribute strictly by workspace ID,
so a running or blocked agent in one workspace no longer shows up on its
same-directory siblings.

A one-time startup migration backfills workspace IDs onto legacy agents, and
every agent and terminal is created with one thereafter. Directory lookups
remain only for genuinely folder-derived git facts (branch, diff) and the
archive-by-path adapter.

packages/app/e2e/helpers/rename.ts

@@ -1,32 +1,5 @@
 import { type Page } from "@playwright/test";
 
-/**
- * Listens for outbound WebSocket "session" frames of a given inner message type
- * and accumulates them. The returned array is populated in-place as frames arrive.
- */
-export function captureWsSessionFrames<T extends Record<string, unknown>>(
-  page: Page,
-  messageType: string,
-  extract: (inner: Record<string, unknown>) => T,
-): T[] {
-  const captured: T[] = [];
-  page.on("websocket", (ws) => {
-    ws.on("framesent", (frame) => {
-      const raw = frame.payload;
-      const text = typeof raw === "string" ? raw : raw.toString("utf8");
-      try {
-        const outer = JSON.parse(text) as { type?: string; message?: Record<string, unknown> };
-        if (outer.type === "session" && outer.message?.type === messageType) {
-          captured.push(extract(outer.message));
-        }
-      } catch {
-        // Ignore non-JSON and binary frames.
-      }
-    });
-  });
-  return captured;
-}
-
 export function renameModalInput(page: Page, testIdPrefix: string) {
   return page.getByTestId(`${testIdPrefix}-input`);
 }