Release 6.2.0

[danielholanda]

Summary of Contributions

• Ryzen AI NPU is available as a device backend in lemonade-install (@amd-pworfolk)
• Ryzen AI NPU and Hybrid execution can be installed into the same Python environment (@amd-pworfolk)
• Allow users to not create a desktop shortcut when using the installer (@danielholanda)
• Ability to select port on lemonade-server serve (@danielholanda)
• Add landing page to server's root URL (@danielholanda)
• Replace the HF/Torch CPU model in Lemonade Server with an OGA-CPU model (@jeremyfowers)
• Remove -m from Installer.nsi (@jeremyfowers) (in case that was causing After Lemonade Installation, it adds -m into user environment variable #306)
• Build optimized OGA checkpoints for Ryzen AI NPU and Hybrid (@iswaryaalex)
• Add max_tokens and temperature parameters to Lemonade Server OpenAI endpoints (@danielholanda)
• Add checkpoint and recipe for each model on /api/v0/models endpoint (@danielholanda).

Changes to Experimental Lemonade Server Endpoints

• The experimental /load endpoint has been reworked (@jeremyfowers).
  • Load a model by its Lemonade name (e.g., Llama-3.2-1B-Instruct-Hybrid)
  • Load a model by its checkpoint and Lemonade Recipe (e.g., "checkpoint": "amd/Llama-3.2-3B-Instruct-awq-g128-int4-asym-fp16-onnx-hybrid", "recipe":"oga-hybrid")

For additional details, see load spec.