* UX: Refine chat preset and group built-in presets
* fix: reuse built-in preset names and unify GGUF state reads
* fix: built-in chat preset save and refresh behavior
* Add chat preset invariant tests
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
* fix: decouple chat presets from model-specific settings
Limit chat preset compare/apply/save behavior to temperature, topP, topK, minP, repetitionPenalty, presencePenalty, maxTokens, and systemPrompt.
Preserve legacy stored preset data on load for backwards compatibility, but stop treating model-specific settings such as checkpoint, trustRemoteCode, and maxSeqLength as part of preset identity.
Also align legacy prompt migration dedupe with the new preset semantics and add invariant coverage for preset-owned config comparisons.
* fix: detect built-in preset edits from param changes
* fix: correct built-in preset dirty state and speculative select values
* fix: preserve default preset sync and keep qwen think pristine
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Co-authored-by: Daniel Han <danielhanchen@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
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