Add provider-agnostic modelMaxThinkingTokens setting

[cte]

Description

I think it's going to be unwieldy if we split this setting for each provider, so let's unify it and give it a better name. Note that the storage key is not changed, so no one's settings will get wiped out.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Checklist:

• My code follows the patterns of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation

Additional context

Related Issues

Reviewers

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Important

Unified modelMaxThinkingTokens setting across providers, replacing vertexThinking and anthropicThinking.

• Behavior:
  • Unified modelMaxThinkingTokens setting replaces vertexThinking and anthropicThinking across the codebase.
  • Ensures modelMaxThinkingTokens is capped at 80% of modelMaxTokens or a minimum of 1024 tokens.
• Code Changes:
  • Updated VertexHandler, AnthropicHandler, and OpenRouterHandler to use modelMaxThinkingTokens.
  • Removed vertexThinking and anthropicThinking from ClineProvider.ts and globalState.ts.
  • Updated ThinkingBudget.tsx to use modelMaxThinkingTokens.
• Tests:
  • Updated tests in vertex.test.ts, checkExistApiConfig.test.ts, ApiOptions.test.tsx, and ThinkingBudget.test.tsx to reflect the new setting.
  • Removed tests related to vertexThinking and anthropicThinking.

^{This description was created by for 8cbce2d. It will automatically update as commits are pushed.}

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[cte]

CC @lupuletic

[ellipsis-dev]

Typographical Inconsistency: In updateApiConfiguration, the call to updateGlobalState uses the key "anthropicThinking" with the variable modelMaxThinkingTokens. Since the change intends to add a provider-agnostic 'modelMaxThinkingTokens' setting, consider renaming the key to "modelMaxThinkingTokens" for consistency.

Suggested change

	this.updateGlobalState("anthropicThinking", modelMaxThinkingTokens),
	this.updateGlobalState("modelMaxThinkingTokens", modelMaxThinkingTokens),

[cte]

@ellipsis-dev - We don't want to change the way this setting is persisted or people will lose their settings.

[ellipsis-dev]

The current implementation correctly updates the global state key anthropicThinking with the variable modelMaxThinkingTokens. This approach ensures that user settings are preserved while implementing the new unified setting. Therefore, no changes are needed in response to the comment.

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Responding to this comment by @cte. For more information about Ellipsis, check the documentation.