feat(deepseek-v4-flash-eugr): use high thinking by default

recipes/deepseek-v4-flash-eugr/recipe.toml

@@ -89,7 +89,7 @@ args = [
     "--enable-auto-tool-choice",
     "--generation-config", "vllm",
     "--default-chat-template-kwargs.thinking=true",
-    "--default-chat-template-kwargs.reasoning_effort=max",
+    "--default-chat-template-kwargs.reasoning_effort=high",
     "--disable-custom-all-reduce",
     "--trust-remote-code",
 ]