chore: Added context re bindable options for agents

[jamescrosswell]

Without this, agents don't have enough context to write correct code.

See:

• feat: Implement strict trace continuation #4981
  • https://github.com/getsentry/sentry-dotnet/actions/runs/22671592175/job/65716959001

I've extracted this from #5034 where it was also required:

• feat: Add option to exclude certain HTTP statuses from tracing #5034

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[github-actions]

Semver Impact of This PR

⚪ None (no version bump detected)

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