[Release] hama v1.3.8: G2P asset refresh

Version 1.3.8 refreshes the packaged G2P assets so the shipped split ONNX model and vocab files match across Python and TypeScript.

• Exported and packaged a new G2P split ONNX model for both Python and TypeScript runtimes.
• Fixed the packaged g2p_vocab.json files so they now match the shipped G2P model instead of a stale vocab ordering.
• G2P decoding output now maps token IDs through the correct vocab file.
• Python and TypeScript package versions are aligned at 1.3.8.