feat: Equipment page — KKT hides connection, Windows printer, COM retry; agent update banner

- EquipmentPage: KKT hides USB/COM/Network buttons (DTO handles connection)
- EquipmentPage: Printer adds Windows connection type — lists installed printers from agent
- EquipmentPage: COM port section has retry button (↺)
- api.ts: add listPrinters, extend connection type
- workstations.ts: add /printers endpoint (list_printers command)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/src/routes/workstations.ts

@@ -262,6 +262,18 @@ const workstationRoutes: FastifyPluginAsync = async (fastify) => {
     },
   )
 
+  // ── GET /api/hotels/:slug/workstations/:id/printers ─────────────────────────
+  fastify.get<WsParam>('/api/hotels/:slug/workstations/:id/printers', { onRequest: [fastify.authenticate] }, async (req, reply) => {
+    const { id } = req.params
+    try {
+      const result = await sendCommandAndWait(id, { type: 'list_printers' }, 8000) as { ok: boolean; printers?: { name: string; isDefault: boolean }[]; error?: string }
+      if (!result.ok) return reply.code(502).send({ error: result.error ?? 'Агент недоступен' })
+      return { printers: result.printers ?? [] }
+    } catch (err) {
+      return reply.code(502).send({ error: err instanceof Error ? err.message : 'Ошибка' })
+    }
+  })
+
   // ── GET /api/hotels/:slug/workstations/:id/ports ────────────────────────────
   fastify.get<WsParam>(
     '/api/hotels/:slug/workstations/:id/ports',

src/lib/api.ts

@@ -359,6 +359,8 @@ export const api = {
       req<{ ok: true; sent: number }>('POST', `/api/hotels/${slug}/workstations/update-all`),
     listPorts: (slug: string, wsId: string) =>
       req<{ ports: { port: string; description?: string }[] }>('GET', `/api/hotels/${slug}/workstations/${wsId}/ports`),
+    listPrinters: (slug: string, wsId: string) =>
+      req<{ printers: { name: string; isDefault: boolean }[] }>('GET', `/api/hotels/${slug}/workstations/${wsId}/printers`),
   },
 
   // ── Agents ────────────────────────────────────────────────────────────────
@@ -1001,7 +1003,7 @@ export interface WorkstationDevice {
   workstationId: string
   type: 'kkt' | 'printer' | 'netup'
   name: string
-  connection: 'usb' | 'network' | 'com'
+  connection: 'usb' | 'network' | 'com' | 'windows'
   networkHost?: string
   networkPort?: number
   comPort?: string

src/pages/EquipmentPage.tsx

@@ -192,9 +192,10 @@ function DeviceForm({
   const handleTypeChange = (t: 'kkt' | 'printer' | 'netup') => {
     setType(t)
     if (t === 'netup') setConnection('network')
+    if (t === 'kkt')   setConnection('com')
   }
   const [name, setName]               = useState(initial?.name ?? '')
-  const [connection, setConnection]   = useState<'usb' | 'network' | 'com'>(initial?.connection ?? 'network')
+  const [connection, setConnection]   = useState<'usb' | 'network' | 'com' | 'windows'>(initial?.connection ?? 'network')
   const [networkHost, setNetworkHost] = useState(initial?.networkHost ?? '')
   const [networkPort, setNetworkPort] = useState(String(initial?.networkPort ?? 9100))
   const [comPort, setComPort]         = useState(initial?.comPort ?? '')
@@ -207,31 +208,68 @@ function DeviceForm({
   const [saving, setSaving]           = useState(false)
   const [availablePorts, setAvailablePorts]       = useState<{ port: string; description?: string }[] | null>(null)
   const [portsLoading, setPortsLoading]           = useState(false)
+  const [availablePrinters, setAvailablePrinters] = useState<{ name: string; isDefault: boolean }[] | null>(null)
+  const [printersLoading, setPrintersLoading]     = useState(false)
+  const [windowsPrinter, setWindowsPrinter]       = useState(String(initial?.config?.windows_printer ?? ''))
 
-  // Загружаем порты когда выбирается COM
+  const loadPorts = () => {
-  useEffect(() => {
+    if (!wsOnline) return
-    if (connection !== 'com' || !wsOnline || availablePorts !== null) return
+    setAvailablePorts(null)
     setPortsLoading(true)
     api.workstations.listPorts(slug, wsId)
       .then(r => setAvailablePorts(r.ports))
       .catch(() => setAvailablePorts([]))
       .finally(() => setPortsLoading(false))
-  }, [connection, wsOnline, slug, wsId, availablePorts])
+  }
+
+  const loadPrinters = () => {
+    if (!wsOnline) return
+    setAvailablePrinters(null)
+    setPrintersLoading(true)
+    api.workstations.listPrinters(slug, wsId)
+      .then(r => setAvailablePrinters(r.printers))
+      .catch(() => setAvailablePrinters([]))
+      .finally(() => setPrintersLoading(false))
+  }
+
+  // Загружаем порты когда выбирается COM
+  useEffect(() => {
+    if (connection !== 'com' || !wsOnline || availablePorts !== null) return
+    loadPorts()
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [connection, wsOnline])
+
+  // Загружаем принтеры когда выбирается Windows
+  useEffect(() => {
+    if (connection !== 'windows' || !wsOnline || availablePrinters !== null) return
+    loadPrinters()
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [connection, wsOnline])
 
   const handleSave = async () => {
     if (!name.trim()) return
     setSaving(true)
+    const configData: Record<string, unknown> = {}
+    if (type === 'kkt' && fiscalMode) {
+      configData.dto_user      = dtoUser
+      configData.dto_pass      = dtoPass
+      if (dtoDeviceId.trim()) configData.dto_device_id = dtoDeviceId.trim()
+    }
+    if (type === 'printer' && connection === 'windows' && windowsPrinter.trim()) {
+      configData.windows_printer = windowsPrinter.trim()
+    }
+
     await onSave({
       type,
       name: name.trim(),
-      connection,
+      connection: type === 'kkt' ? 'com' : connection,
       networkHost: connection === 'network' ? networkHost.trim() : undefined,
       networkPort: connection === 'network' ? Number(networkPort) : undefined,
       comPort:     connection === 'com' ? comPort.trim() : undefined,
       purpose: purpose as WorkstationDevice['purpose'],
       fiscalMode: type === 'kkt' ? fiscalMode : undefined,
       dtoPort:    type === 'kkt' && fiscalMode ? Number(dtoPort) : undefined,
-      config:     type === 'kkt' && fiscalMode ? { dto_user: dtoUser, dto_pass: dtoPass, dto_device_id: dtoDeviceId.trim() || undefined } : undefined,
+      config:     Object.keys(configData).length ? configData : undefined,
     })
     setSaving(false)
   }
@@ -354,14 +392,15 @@ function DeviceForm({
         />
       </div>
 
-      {type !== 'netup' && (
+      {type === 'printer' && (
         <div>
           <label className="block text-xs font-medium text-slate-500 mb-1">Подключение</label>
-          <div className="flex gap-2">
+          <div className="flex gap-2 flex-wrap">
             {([
-              { id: 'usb',     icon: <Usb size={14} />,     label: 'USB' },
               { id: 'network', icon: <Network size={14} />, label: 'Сеть (TCP)' },
+              { id: 'windows', icon: <Monitor size={14} />, label: 'Windows принтер' },
               { id: 'com',     icon: <Cable size={14} />,   label: 'COM-порт' },
+              { id: 'usb',     icon: <Usb size={14} />,     label: 'USB' },
             ] as const).map(c => (
               <button
                 key={c.id}
@@ -403,11 +442,57 @@ function DeviceForm({
         </div>
       )}
 
+      {connection === 'windows' && (
+        <div>
+          <label className="block text-xs font-medium text-slate-500 mb-1 flex items-center gap-2">
+            Принтер Windows
+            {printersLoading && <span className="text-slate-400 font-normal">загрузка...</span>}
+            {wsOnline && !printersLoading && (
+              <button type="button" onClick={loadPrinters} className="text-brand-500 hover:text-brand-700 font-normal">
+                <RefreshCw size={11} />
+              </button>
+            )}
+          </label>
+          {wsOnline && availablePrinters && availablePrinters.length > 0 ? (
+            <select
+              value={windowsPrinter}
+              onChange={e => setWindowsPrinter(e.target.value)}
+              className="w-full input text-sm"
+            >
+              <option value="">— выберите принтер —</option>
+              {availablePrinters.map(p => (
+                <option key={p.name} value={p.name}>
+                  {p.name}{p.isDefault ? ' (по умолчанию)' : ''}
+                </option>
+              ))}
+            </select>
+          ) : (
+            <input
+              value={windowsPrinter}
+              onChange={e => setWindowsPrinter(e.target.value)}
+              className="w-full input text-sm"
+              placeholder="Microsoft Print to PDF"
+            />
+          )}
+          {wsOnline && availablePrinters !== null && availablePrinters.length === 0 && (
+            <p className="text-xs text-amber-500 mt-1">Принтеры не найдены. Убедитесь что принтер установлен в Windows.</p>
+          )}
+          {!wsOnline && (
+            <p className="text-xs text-slate-400 mt-1">Терминал офлайн — введите имя принтера вручную</p>
+          )}
+        </div>
+      )}
+
       {connection === 'com' && (
         <div>
-          <label className="block text-xs font-medium text-slate-500 mb-1">
+          <label className="block text-xs font-medium text-slate-500 mb-1 flex items-center gap-2">
             COM-порт
-            {portsLoading && <span className="ml-2 text-slate-400 font-normal">загрузка...</span>}
+            {portsLoading && <span className="text-slate-400 font-normal">загрузка...</span>}
+            {wsOnline && !portsLoading && (
+              <button type="button" onClick={loadPorts} className="text-brand-500 hover:text-brand-700 font-normal">
+                <RefreshCw size={11} />
+              </button>
+            )}
           </label>
           {wsOnline && availablePorts && availablePorts.length > 0 ? (
             <select
@@ -431,7 +516,7 @@ function DeviceForm({
             />
           )}
           {wsOnline && availablePorts !== null && availablePorts.length === 0 && (
-            <p className="text-xs text-amber-500 mt-1">COM-порты не найдены на терминале</p>
+            <p className="text-xs text-amber-500 mt-1">COM-порты не найдены — нажмите ↺ для повтора</p>
           )}
           {!wsOnline && (
             <p className="text-xs text-slate-400 mt-1">Терминал офлайн — введите порт вручную (COM1, COM3…)</p>