[UX] Opt-in error telemetry for debugging

[mikejmorgan-ai]

Problem

We don't know what's breaking in production. Users hit errors and we never find out.

Solution

Opt-in anonymous error reporting:

$ cortex config telemetry on
✓ Anonymous error reporting enabled. Thank you for helping improve Cortex!
  - No personal data collected
  - Only error types and stack traces
  - View policy: https://cortexlinux.com/privacy

$ cortex config telemetry off
✓ Telemetry disabled.

What We Collect (When Opted In)

• Error type and message
• Stack trace (sanitized - no paths/usernames)
• Cortex version
• OS version
• Python version
• Hardware category (not specific model)

What We Never Collect

• API keys
• Package names (could reveal projects)
• Usernames, paths, IPs
• Command history

Acceptance Criteria

• Disabled by default (opt-in only)
• First-run wizard asks permission
• cortex config telemetry on/off toggle
• Sanitize all PII from reports
• Local log of what was sent (transparency)
• Clear privacy policy

## Bounty: $25 now (+$25 match after funding)

Total: $50 when we close our funding round.

[aybanda]

I'd like to work on this

[Anshgrover23]

@aybanda As stated in contributing.md, issues are unassigned if no PR is submitted within 7 days of assignment. we’re unassigning you from this issue for now. Feel free to take it up again once your pending issues are completed.

[DevJoaoLopes]

@Anshgrover23 I would like to take on this implementation, is that possible?

[Anshgrover23]

@DevJoaoLopes Assigned.

[DevJoaoLopes]

@DevJoaoLopes Assigned.

thanks, working on it 🚀

[Anshgrover23]

@DevJoaoLopes You have 3 days remaining to open a PR. If there’s no activity after that, I’ll unassign you as per the contributing.md guidelines.