[Privacy & Documentation] Disable Telemetry by Default and Clarify in Docs

[IshiKura-a]

Telemetry is currently enabled by default, which may not align with user expectations around privacy — particularly in research, enterprise, or production environments.

🔒Suggestion: Require Explicit Opt-in for Telemetry

1. List all categories of telemetry data currently gathered and how they are collected.
2. As discussed in disable telemetry #2683, it would be more privacy-conscious to disable telemetry unless the user explicitly enables it.
3. Currently, telemetry is only mentioned briefly in faqs.mdx. For improved clarity and user trust, please consider:- Creating a dedicated “Telemetry & Privacy” section

• And clearly stating:
  • What data is collected
  • How it is used
  • How to disable telemetry
  • Providing explicit examples (e.g., environment variable or code snippet)

This would help ensure transparency and respect for user consent.

[wishfay]

exactly right.