chore: adding in some new models token limits (#3685)

crates/goose/src/model.rs

@@ -28,7 +28,11 @@ static MODEL_SPECIFIC_LIMITS: Lazy<HashMap<&'static str, usize>> = Lazy::new(||
     map.insert("llama3.3", 128_000);
 
     // x.ai Grok models, https://docs.x.ai/docs/overview
-    map.insert("grok", 131_072);
+    map.insert("grok-3", 131_072);
+    map.insert("grok-4", 256_000); // 256K
+
+    map.insert("qwen3-coder", 262_144); // 262K
+
     map
 });