fix: use CUSTOM_CONNECT_TIMEOUT for gemini too

feat: add grok-4 to openrouter_models.json

conf/openrouter_models.json

@@ -341,6 +341,25 @@
       "temperature_constraint": "fixed",
       "description": "GPT-5 nano (400K context, 128K output) - Fastest, cheapest version of GPT-5 for summarization and classification tasks",
       "intelligence_score": 8
+    },
+    {
+      "model_name": "x-ai/grok-4",
+      "aliases": [
+        "grok-4",
+        "grok4",
+        "grok"
+      ],
+      "context_window": 256000,
+      "max_output_tokens": 256000,
+      "supports_extended_thinking": true,
+      "supports_json_mode": true,
+      "supports_function_calling": true,
+      "supports_images": true,
+      "max_image_size_mb": 20.0,
+      "supports_temperature": true,
+      "temperature_constraint": "range",
+      "description": "xAI's Grok 4 via OpenRouter with vision and advanced reasoning",
+      "intelligence_score": 15
     }
   ]
 }