A live socket stays with the machine it was opened for

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

BUGS.md

@@ -580,6 +580,15 @@ against what it holds, a request against the page that should have made it.
 5. ✅ **"Everything is up to date." sat in a 20px sliver of a card**, flush to its border, where
    the package list it shares the card with is meant to be.
 
+6. ✅ **A terminal of the hub's was asked for on a node.** Found in Firefox against the live
+   console, which says out loud what Chromium swallows: `wss://…/api/nodes/grid/terminals/
+   adfdeecb/attach`, where `adfdeecb` was one of the hub's — `grid` had no terminals at all. A
+   pane builds its address when it connects, from whichever machine the console is pointed at
+   *now*; switch machine while one is reconnecting and the reconnect goes to the new one. The
+   address is fixed when the pane opens. The same was true of a service's log socket, and is
+   fixed with it. Verified by walking the console around the fleet with a terminal open and
+   checking every socket against the machine that actually owns what it asked for.
+
 ## Checked and fine
 
 Machine titles on every page and against an offline or never-reached machine; the colour a

web/src/Services.tsx

@@ -52,9 +52,12 @@ export function Logs({ unit }: { unit: string }) {
     let readyTimer: number | undefined
     let sock: WebSocket | null = null
     let retry: number | undefined
+    // fixed when the log opens, for the same reason as a terminal's: a reconnect must not
+    // follow the console to another machine
+    const url = wsURLPath(`/api/services/${encodeURIComponent(unit)}/logs/tail?n=200`)
     const connect = () => {
       if (closed) return
-      const s = new WebSocket(wsURLPath(`/api/services/${encodeURIComponent(unit)}/logs/tail?n=200`))
+      const s = new WebSocket(url)
       sock = s
       s.onopen = () => { setLive(true); setErr(''); readyTimer = window.setTimeout(() => setReady(true), 1500) }
       s.onmessage = (ev) => {

web/src/TerminalPane.tsx

@@ -60,9 +60,13 @@ export default function TerminalPane({ id, active, register, onStatus, onExit }:
       sendResize()
     }
 
+    // The address is fixed when the pane opens, not rebuilt on each attempt: it carries which
+    // machine this terminal belongs to, and the console may have moved to another machine
+    // before a reconnect fires — which had the hub's terminals being asked for on a node.
+    const url = wsURL(id)
     const connect = () => {
       if (closed) return
-      const sock = new WebSocket(wsURL(id))
+      const sock = new WebSocket(url)
       sock.binaryType = 'arraybuffer'
       ws = sock
       sock.onopen = () => { retry = 0; setConn('open'); cbs.current.onStatus(true); lastSize = ''; doFit(); while (queued.length) sock.send(enc.encode(queued.shift()!)) }