Important

Resolve composed prompts using PromptService in experimentsRouter to ensure correct prompt data is used for validation.

• Behavior:
  • Use PromptService to resolve prompts in validateConfig query in router.ts.
  • Return error if resolved prompt is not found or has no variables/placeholders.
• Validation:
  • Update variable extraction to use resolvedPrompt instead of prompt.
  • Ensure dataset items contain variables before proceeding.

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