feat(ui): LoRA default weight

[csehatt741]

Summary

A new feature was implemented to specify LoRA default weight per model

• LoraModelDefaultSettings was created in config.py to represent LoRA related default settings
• a new instance variable, default_settings, was added to LoRAConfigBase to persist LoRA related default settings in every kind of LoRA model instance
• a new function, get_default_settings_lora, was added to legacy_probe.py to populate default settings extracted from models
• LoraModelDefaultSettings was added as another option to ModelRecordChanges.default_settings in order to persist LoRA related default settings
• API model re-generated into schema.ts to make latest changes in backend API available in the frontend
• a new field, lora.weight, was added to the zAppConfig schema to store LoRA weight UI elements related default settings
• a new selector, selectLoRAWeightConfig, was added to configSlice.ts to retrieve LoRA weight UI elements related default settings
• defaultLoRAConfig is created per request and was moved into loraAdded reducer to set LoRA weight based on default settings
• useLoRAModelDefaultSettings custom hook was created to merge model and UI related default settings
• DefaultWeight component was created to represent and set the LoRA weight default setting
• LoRAModelDefaultSettings component was created to manage LoRA default settings
• LoRAModelDefaultSettings component was added to ModelView to be able to separately manage main models and LoRA models default settings
• default settings are queried to configure child components in LoRACard component
• new tanslation, lora.weight, was added to en.json

Related Issues / Discussions

https://discord.com/channels/1020123559063990373/1408129778996740167

Checklist

• The PR has a short but descriptive title, suitable for a changelog
• Tests added / updated (if applicable)
• Documentation added / updated (if applicable)
• Updated What's New copy (if doing a release after this PR)

[csehatt741]

I wonder where to create the constant for LoRA weight: 0.75 to replace literals in invokeai.ts and lorasSlice.ts

[csehatt741]

Is it possible to extract the weight setting from LoRA models in get_default_settings_lora?

[psychedelicious]

Sorry, I didn't see your questions in the PR until now!

I wonder where to create the constant for LoRA weight: 0.75 to replace literals in invokeai.ts and lorasSlice.ts

Suggest to revert the configSlice changes and instead export the default LoRA state as a const. Then we can have defaultValue={loraConfig.defaultSettings?.weight ?? DEFAULT_LORA_STATE.weight} in the component. A bit simpler.

Some context - we added parameter constraints to configSlice so the commercial app could override them via props. For example, the commercial app sets the max number of steps to a much lower number than OSS to prevent footguns.

In hindsight, this ends up being tech debt, as the commercial app only overrides a few constraints. Having parameter constraints in configSlice is probably overly complex - we'd be fine to just have constants local to the component for most things, and explicit overrides for the things that need it. LoRA weight isn't one of those things.

Is it possible to extract the weight setting from LoRA models in get_default_settings_lora?

I don't think so as it's not a property of the LoRA model weights. We have some logic to extract parameters from LoRA metadata JSON sidecar files, but I don't think those specify weight.

[psychedelicious]

Nice, thanks! Could small changes requested - great QoL improvement here.

[psychedelicious]

Thanks!