fix: Windows installer and desktop app start and stop the node one way

A 0.16 upgrade in service mode left the previous node running: setup's
unelevated taskkill cannot reach session 0, and it ran in customInstall, which
electron-builder inserts after the files are copied. The locked exe was not
replaced, and the new app talked to the old node ("started but could not link",
"No operator paired").

Installer (build/installer.nsh, build/stop-node.ps1):
- customCheckAppRunning, which runs before uninstallOldVersion and extraction,
  stops the node with an embedded stop-node.ps1: control API, then schtasks
  /end, then Stop-Process, and refuses to half-upgrade if one survives.
- An upgrade keeps the mode it finds (task, launcher, previous install),
  restores the sign-in launcher the old uninstaller deletes, and restarts the
  node the way that mode runs it. A silent upgrade of an "at sign-in" install
  used to end with no autostart and no node.
- The uninstaller removes the task and firewall rules only on a real
  uninstall, not on an update.

Desktop app (src/main.js):
- Start, Stop, Restart and node:start go through the CLI's lifecycle verbs
  instead of a second implementation; a child spawned by Electron also held
  Electron's sockets after the app quit.
- "Only while MeshBay is open" is a real mode: the app starts a provisioned
  node at launch and stops the one it started when it quits.
- Switching modes stops the node first -- deleting a task does not end its
  instance, and a new service found the port taken -- keeps the firewall
  rules every mode needs, and starts the node again. A declined or unanswered
  UAC prompt restores the node instead of leaving it stopped, and says that
  nothing changed.
- waiting_for_hub counts as a node that is up; linking waits for a node that
  answers, with a longer deadline, and reports a version mismatch.

Packaging (packaging/win):
- The service task gets no 72-hour limit, runs on battery and ignores a second
  start; service.ps1 status reports a stale registration so setup re-registers
  it; remove ends the running instance before deleting the task.
- build-node-runtime.ps1 starts the frozen daemon in a throwaway profile
  (smoke-node-runtime.ps1) instead of only asking for --help.

The mode that was "Off (start manually)" is labelled "Only while MeshBay is
open" in all ten catalogues.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

10 files changed, 10 insertions, 10 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/locales/de.js b/packages/meshbay-hub/src/meshbay_hub/static/locales/de.js
index 7bd5169..41a56be 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/locales/de.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/locales/de.js
@@ -910,7 +910,7 @@ export default {
   'node.service_restarting': 'Wird neu gestartet…',
   'node.service_mode_hint': 'Läuft als Hintergrunddienst — startet beim Booten, vor der Anmeldung.',
   'node.startup_mode_label': 'Automatisch starten:',
-  'node.startup_mode_off': 'Aus (manuell starten)',
+  'node.startup_mode_off': 'Nur solange MeshBay geöffnet ist',
   'node.startup_mode_signin': 'Bei der Anmeldung',
   'node.startup_mode_service': 'Als Hintergrunddienst (startet beim Booten)',
   'node.startup_mode_updating': 'Modus wird gewechselt — achten Sie auf eine Administrator-Eingabeaufforderung…',
diff --git a/packages/meshbay-hub/src/meshbay_hub/static/locales/en.js b/packages/meshbay-hub/src/meshbay_hub/static/locales/en.js
index 0c9cb19..7c06815 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/locales/en.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/locales/en.js
@@ -1006,7 +1006,7 @@ export default {
   'node.service_restarting': 'Restarting…',
   'node.service_mode_hint': 'Running as a background service — it starts at boot, before sign-in.',
   'node.startup_mode_label': 'Start automatically:',
-  'node.startup_mode_off': 'Off (start manually)',
+  'node.startup_mode_off': 'Only while MeshBay is open',
   'node.startup_mode_signin': 'At sign-in',
   'node.startup_mode_service': 'As a background service (starts at boot)',
   'node.startup_mode_updating': 'Switching mode — check for an administrator prompt…',
diff --git a/packages/meshbay-hub/src/meshbay_hub/static/locales/es.js b/packages/meshbay-hub/src/meshbay_hub/static/locales/es.js
index 1399a83..939b96c 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/locales/es.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/locales/es.js
@@ -904,7 +904,7 @@ export default {
   'node.service_restarting': 'Reiniciando…',
   'node.service_mode_hint': 'Se ejecuta como servicio en segundo plano — se inicia al arrancar, antes de iniciar sesión.',
   'node.startup_mode_label': 'Iniciar automáticamente:',
-  'node.startup_mode_off': 'Desactivado (iniciar manualmente)',
+  'node.startup_mode_off': 'Solo mientras MeshBay está abierto',
   'node.startup_mode_signin': 'Al iniciar sesión',
   'node.startup_mode_service': 'Como servicio en segundo plano (se inicia al arrancar)',
   'node.startup_mode_updating': 'Cambiando de modo — compruebe si aparece un aviso de administrador…',
diff --git a/packages/meshbay-hub/src/meshbay_hub/static/locales/fr.js b/packages/meshbay-hub/src/meshbay_hub/static/locales/fr.js
index ae278d9..c546d4e 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/locales/fr.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/locales/fr.js
@@ -907,7 +907,7 @@ export default {
   'node.service_restarting': 'Redémarrage…',
   'node.service_mode_hint': 'Fonctionne comme service en arrière-plan — démarre au boot, avant l\'ouverture de session.',
   'node.startup_mode_label': 'Démarrer automatiquement :',
-  'node.startup_mode_off': 'Désactivé (démarrage manuel)',
+  'node.startup_mode_off': 'Uniquement quand MeshBay est ouvert',
   'node.startup_mode_signin': 'À l\'ouverture de session',
   'node.startup_mode_service': 'Comme service en arrière-plan (démarre au boot)',
   'node.startup_mode_updating': 'Changement de mode — vérifiez une invite d\'administrateur…',
diff --git a/packages/meshbay-hub/src/meshbay_hub/static/locales/it.js b/packages/meshbay-hub/src/meshbay_hub/static/locales/it.js
index f0fb0d1..893a563 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/locales/it.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/locales/it.js
@@ -906,7 +906,7 @@ export default {
   'node.service_restarting': 'Riavvio…',
   'node.service_mode_hint': 'In esecuzione come servizio in background — si avvia all\'avvio del sistema, prima dell\'accesso.',
   'node.startup_mode_label': 'Avvia automaticamente:',
-  'node.startup_mode_off': 'Disattivato (avvio manuale)',
+  'node.startup_mode_off': 'Solo mentre MeshBay è aperto',
   'node.startup_mode_signin': 'All\'accesso',
   'node.startup_mode_service': 'Come servizio in background (si avvia all\'avvio del sistema)',
   'node.startup_mode_updating': 'Cambio modalità — controlli se compare una richiesta di amministratore…',
diff --git a/packages/meshbay-hub/src/meshbay_hub/static/locales/ja.js b/packages/meshbay-hub/src/meshbay_hub/static/locales/ja.js
index 560332d..1a03c52 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/locales/ja.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/locales/ja.js
@@ -894,7 +894,7 @@ export default {
   'node.service_restarting': '再起動中…',
   'node.service_mode_hint': 'バックグラウンドサービスとして実行中 — サインインより前、起動時に開始します。',
   'node.startup_mode_label': '自動的に開始:',
-  'node.startup_mode_off': 'オフ（手動で開始）',
+  'node.startup_mode_off': 'MeshBay が開いている間のみ',
   'node.startup_mode_signin': 'サインイン時',
   'node.startup_mode_service': 'バックグラウンドサービスとして（起動時に開始）',
   'node.startup_mode_updating': 'モードを切り替え中 — 管理者の確認ダイアログをご確認ください…',
diff --git a/packages/meshbay-hub/src/meshbay_hub/static/locales/nl.js b/packages/meshbay-hub/src/meshbay_hub/static/locales/nl.js
index adb94c6..8ae0ab3 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/locales/nl.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/locales/nl.js
@@ -908,7 +908,7 @@ export default {
   'node.service_restarting': 'Herstarten…',
   'node.service_mode_hint': 'Actief als achtergrondservice — start bij het opstarten, vóór het aanmelden.',
   'node.startup_mode_label': 'Automatisch starten:',
-  'node.startup_mode_off': 'Uit (handmatig starten)',
+  'node.startup_mode_off': 'Alleen zolang MeshBay open is',
   'node.startup_mode_signin': 'Bij aanmelden',
   'node.startup_mode_service': 'Als achtergrondservice (start bij het opstarten)',
   'node.startup_mode_updating': 'Modus wijzigen — let op een beheerdersprompt…',
diff --git a/packages/meshbay-hub/src/meshbay_hub/static/locales/pl.js b/packages/meshbay-hub/src/meshbay_hub/static/locales/pl.js
index fb5a4ed..a2cc5bb 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/locales/pl.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/locales/pl.js
@@ -926,7 +926,7 @@ export default {
   'node.service_restarting': 'Ponowne uruchamianie…',
   'node.service_mode_hint': 'Działa jako usługa w tle — uruchamia się przy starcie systemu, przed zalogowaniem.',
   'node.startup_mode_label': 'Uruchamiaj automatycznie:',
-  'node.startup_mode_off': 'Wyłączone (uruchamianie ręczne)',
+  'node.startup_mode_off': 'Tylko gdy MeshBay jest otwarty',
   'node.startup_mode_signin': 'Przy logowaniu',
   'node.startup_mode_service': 'Jako usługa w tle (uruchamia się przy starcie systemu)',
   'node.startup_mode_updating': 'Zmiana trybu — proszę sprawdzić, czy pojawiło się okno uprawnień administratora…',
diff --git a/packages/meshbay-hub/src/meshbay_hub/static/locales/pt-BR.js b/packages/meshbay-hub/src/meshbay_hub/static/locales/pt-BR.js
index 7bd11f6..2b98298 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/locales/pt-BR.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/locales/pt-BR.js
@@ -905,7 +905,7 @@ export default {
   'node.service_restarting': 'Reiniciando…',
   'node.service_mode_hint': 'Em execução como serviço em segundo plano — inicia na inicialização, antes do login.',
   'node.startup_mode_label': 'Iniciar automaticamente:',
-  'node.startup_mode_off': 'Desativado (iniciar manualmente)',
+  'node.startup_mode_off': 'Somente enquanto o MeshBay estiver aberto',
   'node.startup_mode_signin': 'Ao entrar na sessão',
   'node.startup_mode_service': 'Como serviço em segundo plano (inicia na inicialização)',
   'node.startup_mode_updating': 'Alternando modo — verifique se aparece um aviso de administrador…',
diff --git a/packages/meshbay-hub/src/meshbay_hub/static/locales/zh-CN.js b/packages/meshbay-hub/src/meshbay_hub/static/locales/zh-CN.js
index 5509332..4ac583a 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/locales/zh-CN.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/locales/zh-CN.js
@@ -882,7 +882,7 @@ export default {
   'node.service_restarting': '正在重启…',
   'node.service_mode_hint': '以后台服务方式运行 — 在开机时启动，早于登录。',
   'node.startup_mode_label': '自动启动：',
-  'node.startup_mode_off': '关闭（手动启动）',
+  'node.startup_mode_off': '仅在 MeshBay 打开时',
   'node.startup_mode_signin': '登录时',
   'node.startup_mode_service': '作为后台服务（开机时启动）',
   'node.startup_mode_updating': '正在切换模式 — 请留意管理员权限提示…',