[nwparker]

	Files	Added	Deleted	Net
Test	4	$\color{#1a7f37}{\Huge{\mathbf{+}}}$​57	0	$\color{#1a7f37}{\Huge{\mathbf{+}}}$​57
Prod	8	$\color{#1a7f37}{\Huge{\mathbf{+}}}$​42	$\color{#cf222e}{\Huge{\mathbf{−}}}$​11	$\color{#1a7f37}{\Huge{\mathbf{+}}}$​31

Stacked on #32400. Behind ORCA_INTERNAL_WSL_HOSTS, except the Sleep request option: an optional keepBrowserTabs field on main's own Sleep request, which only the WSL move sets. Not for merge until the stack is reviewed.

Summary

Things a WSL move lost in the D1b-10 real-host run on awin (report bugs 7 and 8) and in verify-3:

1. The folder of a pane slept before the move. It reopened at the project root; verify-3 lost deep/. fix(wsl-mover): fix the P0s the first real-machine move run found #32343 already carries such a pane's history; this carries its folder.
2. In-app browser tabs. The tab vanished; only its cookies were copied.
3. Unsaved drafts (pinned, not changed): a moving project's draft carries. The refusal the run saw came from a draft in another project, fixed in fix(wsl-mover): fix the P0s the first real-machine move run found #32343.

Mechanism

• Folders: the pause step adds the panes slept before the move to the panes it hands on. It uses fix(wsl-mover): fix the P0s the first real-machine move run found #32343's listWslMoveSleptSessionPanes: bindings the saved session still holds, plus the window-reported sleptPanes, each checked against the moved workspaces. Restore hints and history now read the same panes. These panes were never live, so the exit proof's session set is unaffected for them.
• Browser tabs: the move pauses projects through Sleep, and Sleep closes a workspace's browser tabs. A move's Sleep request carries keepBrowserTabs: true, and the renderer then skips shutdownWorktreeBrowsers. An older renderer ignores the field.
• Drafts: by design the move never sends draft contents to the host; the host-session seed lays this desktop's draft back over the moved tab.

Testing

• wsl-move-driver.test.ts: a pane slept before the move, both one the saved session binds and one only the window reports, reaches the restore-hint capture (fails on the old code).
• sleep-worktree-flow.test.ts, worktree-sleep-request-relay.test.ts: the move's Sleep keeps browsers; other callers unchanged.
• wsl-move-manifest-export.test.ts: an in-scope draft carries without a blocker.
• Mover tests pass (55 files); pnpm tc and the changed-code quality gate pass.

[nwparker]

Contained in the dark landing PR #34059 (its head commit is an ancestor of the landing branch). Closing in favour of it; branch kept.