feat(aiturk): one-click sign-in for AITURK IDE (1.0.0-beta.14)

The onboarding and provider settings get a Sign in button: the IDE shows a
short code, opens the turkservis.online approval page, and after approval
saves the TurkServis provider itself and hands a separate member key to the
AITURK CLI over stdin (aiturk login --key-stdin --keep-other-account).
Keys never reach the renderer, logs, process arguments or URLs. Pasting an
API key remains as the fallback.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B8ppceaR5s6cvMnm7uGRnf

apps/desktop/src/app/settings/custom-endpoints-settings.tsx

@@ -1,5 +1,6 @@
 import { useEffect, useState } from 'react'
 
+import { AiturkLogin } from '@/components/aiturk-login'
 import { Button } from '@/components/ui/button'
 import { Checkbox } from '@/components/ui/checkbox'
 import { Input } from '@/components/ui/input'
@@ -80,7 +81,10 @@ function toPayload(form: EndpointForm, models?: string[]): CustomEndpointUpdate
 
 export function CustomEndpointsSettings({ onConfigSaved, onMainModelChanged }: CustomEndpointsSettingsProps) {
   const { t } = useI18n()
-  const c = useAiturkCopy().custom
+  const aiturkCopy = useAiturkCopy()
+  const c = aiturkCopy.custom
+  const loginCopy = aiturkCopy.login
+  const loginLabel = loginCopy.settingsSignIn
   const [loading, setLoading] = useState(true)
   const [saving, setSaving] = useState(false)
   const [testing, setTesting] = useState(false)
@@ -129,6 +133,31 @@ export function CustomEndpointsSettings({ onConfigSaved, onMainModelChanged }: C
     }
   }, [])
 
+  // One-click sign-in saved the TurkServis provider in the main process:
+  // reload the list and tell the app its default model changed.
+  async function handleAiturkConnected() {
+    try {
+      const data = await getCustomEndpoints()
+      setEndpoints(data.endpoints)
+      const current = data.endpoints.find(endpoint => endpoint.id === 'turkservis')
+
+      if (current) {
+        setForm(formFromEndpoint(current))
+        setDiscoveredModels(current.models)
+
+        if (current.is_current) {
+          onMainModelChanged?.(current.id, current.model)
+        }
+      }
+
+      triggerHaptic('success')
+      onConfigSaved?.()
+      notify({ kind: 'success', message: loginCopy.connected })
+    } catch (err) {
+      notifyError(err, c.loadFailed)
+    }
+  }
+
   async function handleSave() {
     try {
       setSaving(true)
@@ -298,10 +327,13 @@ export function CustomEndpointsSettings({ onConfigSaved, onMainModelChanged }: C
         </section>
 
         <section>
-          <Button className="mb-3" onClick={() => {
-            setForm({ ...EMPTY_FORM, name: 'TurkServis · AITURK', baseUrl: AITURK_API_BASE_URL })
-            setDiscoveredModels([])
-          }} variant="outline">{c.preset}</Button>
+          <div className="mb-3 flex flex-wrap items-start gap-2">
+            <AiturkLogin label={loginLabel} onConnected={handleAiturkConnected} />
+            <Button onClick={() => {
+              setForm({ ...EMPTY_FORM, name: 'TurkServis · AITURK', baseUrl: AITURK_API_BASE_URL })
+              setDiscoveredModels([])
+            }} variant="outline">{c.preset}</Button>
+          </div>
           <SectionHeading icon={Plus} title={form.id ? c.edit : c.add} />
           <div className="grid gap-3 rounded-md border border-border/50 p-3">
             <div className="grid gap-3 sm:grid-cols-2">