feat: skip exposure event for disabled flags in getExperimentFlag

[Zaimwa9]

Thanks for submitting a PR! Please check the boxes below:

• I have read the Contributing Guide.
• I have added information to docs/ if required so people know about the feature.
• I have filled in the "Changes" section below.
• I have filled in the "How did you test this code" section below.

Changes

getExperimentFlag no longer fires a $flag_exposure event when the resolved flag is disabled, keeping experimentation data clean. The flag is still returned unchanged — only the exposure event is skipped.

How did you test this code?

Added a unit test in test/events.test.ts (disabled off_value fixture): asserts the flag is returned and no event is flushed. Full suite green.

[gemini-code-assist]

Code Review

This pull request modifies getExperimentFlag to skip tracking exposure events when the flag is disabled, ensuring cleaner experimentation data. It also adds a corresponding unit test and updates the documentation. The feedback suggests simplifying the condition in flagsmith-core.ts by using optional chaining (flag?.enabled) to make the code more concise and idiomatic.

[Zaimwa9]

@gemini-code-assist review

[gemini-code-assist]

Code Review

This pull request updates the getExperimentFlag method in flagsmith-core.ts to skip recording exposure events and return the flag if the flag is disabled. It also adds a corresponding test case and test data to verify this behavior. There are no review comments to address, and I have no additional feedback to provide.