feat: improve thought segments syntax extraction

[giladgd]

Description of change

• feat: improve thought segment syntax extraction
• feat: expose the model's architecture directly on the model instance
• fix: adapt to breaking llama.cpp changes
• fix: map GgmlType configs directly from native code

Fixes #634

Pull-Request Checklist

• Code is up-to-date with the master branch
• npm run format to apply eslint formatting
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• This pull request links relevant issues as Fixes #0000
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