Incorrect "Private repository detected" message shown despite successful GitHub data fetch

[jagriti-aswal]

Problem

The Tracker page sometimes displays the following error message:

"Private repository detected. Please input PAT."

even when GitHub data is successfully fetched and displayed.

For example:

• Pull request data may still load correctly
• Public GitHub account activity is accessible
• Yet the UI still shows a misleading private repository error

This creates confusion for users because the issue may not actually be related to private repositories or PAT permissions.

---

Steps to Reproduce

1. Open the Tracker page
2. Enter a GitHub username along with an invalid/random PAT
3. Click "Fetch Data"
4. Observe that pull request data loads successfully while the UI still displays:
   "Private repository detected. Please input PAT."

---

Current Behavior

• Partial GitHub data is displayed successfully
• A misleading permission/private repository error is still shown globally

---

Expected Behavior

The application should:

• correctly distinguish between partial fetch failures and complete failures
• avoid displaying misleading PAT/private repository errors
• show more accurate and contextual error feedback

---

Suggested Improvement

Improve API response and error classification handling by:

• separating issue-fetch and PR-fetch error states
• avoiding global error messages when partial data loads successfully
• providing clearer feedback for actual permission-related failures

I would like to work on this issue under GSSoC'26. Kindly assign it to me.