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

- Dynamic custom model fetching for model selection

src/sse/handlers/chat.js

@@ -206,6 +206,7 @@ async function handleSingleModelChat(body, modelStr, clientRawRequest = null, re
       userAgent,
       apiKey,
       ccFilterNaming: !!chatSettings.ccFilterNaming,
+      rtkEnabled: !!chatSettings.rtkEnabled,
       providerThinking,
       // Detect source format by endpoint + body
       sourceFormatOverride: request?.url ? detectFormatByEndpoint(new URL(request.url).pathname, body) : null,