feat(codex-link): persist direct subscription and AITURK connection modes

apps/desktop/electron/codex-link-config.ts

@@ -300,6 +300,7 @@ export function removeCodexLinkLine(source: string): CodexConfigEdit {
 
 export interface CodexLinkSettings {
   enabled: boolean
+  mod: 'dogrudan' | 'aiturk'
   /** Every field of the stored object, so a rewrite keeps what it did not set. */
   stored: Record<string, unknown>
 }
@@ -307,26 +308,34 @@ export interface CodexLinkSettings {
 /** Missing, unreadable or malformed means ON: the feature is on by default. */
 export function parseCodexLinkSettings(raw: null | string | undefined): CodexLinkSettings {
   if (typeof raw !== 'string') {
-    return { enabled: true, stored: {} }
+    return { enabled: true, mod: 'dogrudan', stored: {} }
   }
 
   try {
     const parsed = JSON.parse(raw)
 
     if (!parsed || typeof parsed !== 'object' || Array.isArray(parsed)) {
-      return { enabled: true, stored: {} }
+      return { enabled: true, mod: 'dogrudan', stored: {} }
     }
 
-    return { enabled: parsed.enabled !== false, stored: parsed as Record<string, unknown> }
+    return {
+      enabled: parsed.enabled !== false,
+      mod: parsed.mod === 'aiturk' ? 'aiturk' : 'dogrudan',
+      stored: parsed as Record<string, unknown>
+    }
   } catch {
-    return { enabled: true, stored: {} }
+    return { enabled: true, mod: 'dogrudan', stored: {} }
   }
 }
 
-export function serializeCodexLinkSettings(stored: Record<string, unknown>, enabled: boolean): string {
+export function serializeCodexLinkSettings(
+  stored: Record<string, unknown>,
+  enabled: boolean,
+  mod: 'dogrudan' | 'aiturk' = stored.mod === 'aiturk' ? 'aiturk' : 'dogrudan'
+): string {
   const kapsam = typeof stored.kapsam === 'string' && stored.kapsam ? stored.kapsam : 'ide'
 
-  return `${JSON.stringify({ ...stored, enabled, kapsam }, null, 2)}\n`
+  return `${JSON.stringify({ ...stored, enabled, mod, kapsam }, null, 2)}\n`
 }
 
 // ── Bridge configuration ────────────────────────────────────────────────────