Update license to Apache-2.0 and add library_name: transformers

This PR improves the model card by:

- **Updating the `license` to `apache-2.0`**: This provides a more specific and accurate license identifier, moving from `other` to `apache-2.0`, as found through community verification.
- **Adding `library_name: transformers` to the metadata**: The "Quick Start" section clearly demonstrates compatibility and usage with the `transformers` library, including `AutoModelForCausalLM` and `AutoTokenizer`. Adding this tag will enable the automated "How to use" widget on the model page, offering a convenient code snippet for users.

These changes enhance the discoverability and usability of the model on the Hugging Face Hub.

README.md

@@ -1,13 +1,14 @@
 ---
+language:
+- en
+license: apache-2.0
+pipeline_tag: text-generation
 tags:
 - text-generation
 - agent
 - tool-use
 - long-context
-license: other
-language:
-- en
-pipeline_tag: text-generation
+library_name: transformers
 ---
 
 <div style="display: flex; justify-content: center; align-items: center; gap: 20px;">
@@ -169,5 +170,4 @@ print(out[0].outputs[0].text)
       primaryClass={cs.AI},
       url={https://arxiv.org/abs/2509.17567}, 
 }
-```
-
+```