* DEV: use a proper object for tool definition
This moves away from using a loose hash to define tools, which
is error prone.
Instead given a proper object we will also be able to coerce the
return values to match tool definition correctly
* fix xml tools
* fix anthropic tools
* fix specs... a few more to go
* specs are passing
* FIX: coerce values for XML tool calls
* Update spec/lib/completions/tool_definition_spec.rb
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Refactor dialect selection and add Nova API support
Change dialect selection to use llm_model object instead of just provider name
Add support for Amazon Bedrock's Nova API with native tools
Implement Nova-specific message processing and formatting
Update specs for Nova and AWS Bedrock endpoints
Enhance AWS Bedrock support to handle Nova models
Fix Gemini beta API detection logic
