feat(models): support Grok4 (#8032)

refactor(models): rename and enhance reasoning model functions for clarity and functionality

src/renderer/src/config/models.ts

@@ -2487,7 +2487,7 @@ export function isGrokModel(model?: Model): boolean {
   return model.id.includes('grok')
 }
 
-export function isGrokReasoningModel(model?: Model): boolean {
+export function isSupportedReasoningEffortGrokModel(model?: Model): boolean {
   if (!model) {
     return false
   }
@@ -2499,7 +2499,16 @@ export function isGrokReasoningModel(model?: Model): boolean {
   return false
 }
 
-export const isSupportedReasoningEffortGrokModel = isGrokReasoningModel
+export function isGrokReasoningModel(model?: Model): boolean {
+  if (!model) {
+    return false
+  }
+  if (isSupportedReasoningEffortGrokModel(model) || model.id.includes('grok-4')) {
+    return true
+  }
+
+  return false
+}
 
 export function isGeminiReasoningModel(model?: Model): boolean {
   if (!model) {