fix(components): add missing opik key to returnIds in AnalyticHandler.onLLMStart

[wishhyt]

Summary

AnalyticHandler.onLLMStart() in packages/components/src/handler.ts initializes a returnIds object that is missing the opik: {} entry. When the Opik analytics provider is enabled, the code later attempts to set returnIds['opik'].llmSpan, which throws TypeError: Cannot set properties of undefined (setting 'llmSpan').

All sibling methods (onChainStart, onToolStart) correctly include opik in their returnIds initialization. This was a copy-paste omission.

Changes

Added opik: {} to the returnIds object in onLLMStart() (line 1312)

How to reproduce the bug

1. Configure Opik as an analytics provider in a chatflow
2. Trigger a prediction that invokes LLM
3. onLLMStart throws TypeError, breaking analytics tracking

[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a critical bug in the 'AnalyticHandler' component where the Opik analytics provider was not correctly initialized, leading to a runtime error. The fix ensures that the 'onLLMStart' method properly includes the 'opik' key in its 'returnIds' object, aligning its behavior with other similar methods and preventing analytics tracking failures.

Highlights

• Bug Fix: Opik Analytics Initialization: Resolved a TypeError occurring when the Opik analytics provider was enabled due to a missing 'opik: {}' entry in the 'returnIds' object within 'AnalyticHandler.onLLMStart()'.
• Improved Analytics Stability: Ensured consistent initialization of analytics provider IDs across 'AnalyticHandler' methods, preventing runtime errors and ensuring proper analytics tracking for Opik.

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[gemini-code-assist]

Code Review

This pull request correctly fixes a TypeError that occurred when using the Opik analytics provider by adding a missing opik key during the initialization of the returnIds object. The fix is appropriate and resolves the described bug. The suggestion to refactor the duplicated object initialization into a helper method has been omitted, as for small, clear configurations, duplication is acceptable if the maintainability benefit is negligible, aligning with repository guidelines.