fix(spinner): Clear line before printing

[tab]

Add ANSI escape sequence to clear line before updating spinner display

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 87.29%. Comparing base (c25390d) to head (e6b36d4).
⚠️ Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/app/cli/spinner/spinner.go	0.00%	1 Missing ⚠️

❌ Your patch status has failed because the patch coverage (0.00%) is below the target coverage (70.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #47      +/-   ##
==========================================
- Coverage   87.90%   87.29%   -0.61%     
==========================================
  Files          23       23              
  Lines        1149     1149              
==========================================
- Hits         1010     1003       -7     
- Misses        116      123       +7     
  Partials       23       23              

Files with missing lines	Coverage Δ
internal/app/cli/spinner/spinner.go	86.66% <0.00%> (-11.67%)	⬇️

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[Copilot]

Pull request overview

This PR fixes a display issue in the spinner component by adding an ANSI escape sequence to properly clear the terminal line before updating the spinner display. This prevents visual artifacts when the spinner message changes to a shorter string.

Changes:

• Added \033[K escape sequence to clear the line from cursor to end before printing the spinner frame and message

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