- Cap maximum cooldown for rate limit handling in account unavailability and single-model chat flows

- Dynamic custom model fetching for model selection

src/app/api/cli-tools/codex-settings/route.js

@@ -159,7 +159,9 @@ export async function POST(request) {
       authData = JSON.parse(existingAuth);
     } catch { /* No existing auth */ }
     
+    // Force apikey mode (keep existing tokens untouched for ChatGPT login reuse)
     authData.OPENAI_API_KEY = apiKey;
+    authData.auth_mode = "apikey";
     await fs.writeFile(authPath, JSON.stringify(authData, null, 2));
 
     return NextResponse.json({
@@ -215,7 +217,8 @@ export async function DELETE() {
       const existingAuth = await fs.readFile(authPath, "utf-8");
       const authData = JSON.parse(existingAuth);
       delete authData.OPENAI_API_KEY;
-      
+      delete authData.auth_mode;
+
       // Write back or delete if empty
       if (Object.keys(authData).length === 0) {
         await fs.unlink(authPath);

src/app/api/combos/[id]/route.js

@@ -1,5 +1,6 @@
 import { NextResponse } from "next/server";
 import { getComboById, updateCombo, deleteCombo, getComboByName } from "@/lib/localDb";
+import { resetComboRotation } from "open-sse/services/combo.js";
 
 // Validate combo name: only a-z, A-Z, 0-9, -, _
 const VALID_NAME_REGEX = /^[a-zA-Z0-9_.\-]+$/;
@@ -40,12 +41,18 @@ export async function PUT(request, { params }) {
       }
     }
     
+    // Capture previous name to invalidate rotation state on rename
+    const prev = await getComboById(id);
     const combo = await updateCombo(id, body);
     
     if (!combo) {
       return NextResponse.json({ error: "Combo not found" }, { status: 404 });
     }
 
+    // Invalidate rotation state (models/strategy/name may have changed)
+    if (prev?.name) resetComboRotation(prev.name);
+    if (combo.name && combo.name !== prev?.name) resetComboRotation(combo.name);
+
     return NextResponse.json(combo);
   } catch (error) {
     console.log("Error updating combo:", error);
@@ -57,11 +64,14 @@ export async function PUT(request, { params }) {
 export async function DELETE(request, { params }) {
   try {
     const { id } = await params;
+    const prev = await getComboById(id);
     const success = await deleteCombo(id);
     
     if (!success) {
       return NextResponse.json({ error: "Combo not found" }, { status: 404 });
     }
+
+    if (prev?.name) resetComboRotation(prev.name);
     
     return NextResponse.json({ success: true });
   } catch (error) {

src/app/api/settings/route.js

@@ -1,7 +1,7 @@
 import { NextResponse } from "next/server";
 import { getSettings, updateSettings } from "@/lib/localDb";
 import { applyOutboundProxyEnv } from "@/lib/network/outboundProxy";
-import { setRtkEnabled } from "open-sse/rtk/flag.js";
+import { resetComboRotation } from "open-sse/services/combo.js";
 import bcrypt from "bcryptjs";
 
 export async function GET() {
@@ -67,10 +67,14 @@ export async function PATCH(request) {
       applyOutboundProxyEnv(settings);
     }
 
-    // Sync RTK toggle immediately (sync cache for request hot path)
-    if (Object.prototype.hasOwnProperty.call(body, "rtkEnabled")) {
-      setRtkEnabled(settings.rtkEnabled);
+    // Invalidate combo rotation state when strategy settings change
+    if (
+      Object.prototype.hasOwnProperty.call(body, "comboStrategy") ||
+      Object.prototype.hasOwnProperty.call(body, "comboStrategies")
+    ) {
+      resetComboRotation();
     }
+
     const { password, ...safeSettings } = settings;
     return NextResponse.json(safeSettings);
   } catch (error) {