Bug bash 2026-09-19: 17 bugs fixed and verified (BUGS.md)

Widgets: a bad pattern no longer silences every widget; malformed layouts load.
Shell: lost session returns to login at once; tab titles; Escape closes menus and dialogs.
Files: names are one path segment; unsaved edits ask before page/machine/tab changes;
only folders that opened are remembered. Terminals: unique default names; 64-char names.
API: queries capped at 10 000 values; 32 streams per client, 512 in all; only
/embed/widget is frameable. ZFS sensors: one unprivileged zpool list, no sudo journal spam.
Phone: 36 px inputs; dataset rows as wide as their cells. Machines: valid name pattern.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

web/src/MachineSwitcher.tsx

@@ -1,5 +1,6 @@
 import { useEffect, useRef, useState } from 'react'
 import { MachineStatus } from './api'
+import { useEscape } from './ui'
 
 // The host picker at the top of the rail. The hub is always first; managed machines follow
 // with their live status. Picking one re-points the whole console at it.
@@ -13,6 +14,7 @@ export default function MachineSwitcher({ hub, current, machines, onChange, onMa
     window.addEventListener('click', h)
     return () => window.removeEventListener('click', h)
   }, [])
+  useEscape(() => setOpen(false), open)
   const cur = current ? machines.find((m) => m.name === current) : null
   const dotFor = (m?: MachineStatus | null) => (!m ? 'ok' : m.online ? 'ok' : 'bad')
   return (