fix(artifact): return errors from view command via RunE

[cotishq]

Description

Fixes command error handling in harbor artifact view so failures are returned to Cobra and the process exits non-zero instead of silently succeeding.

• Fixes [bug]: harbor artifact view returns exit code 0 on invalid input and API failures #910

Type of Change

Please select the relevant type.

• Bug fix
• New feature
• Refactor
• Documentation update
• Chore / maintenance

Changes

• Converted artifact view command from Run to RunE in view.go.
• Replaced log-and-return paths with explicit return fmt.Errorf(...) for parse, prompt, validation, and API failures.
• Preserved success behavior/output, but now error cases correctly return exit code 1 for script/CI reliability.
• Before :

---

• After (fix):

[codecov]

Codecov Report

❌ Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 8.80%. Comparing base (60ad0bd) to head (36f909c).
⚠️ Report is 159 commits behind head on main.

Files with missing lines	Patch %	Lines
cmd/harbor/root/artifact/view.go	0.00%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             main    #912      +/-   ##
=========================================
- Coverage   10.99%   8.80%   -2.19%     
=========================================
  Files         173     280     +107     
  Lines        8671   13962    +5291     
=========================================
+ Hits          953    1230     +277     
- Misses       7612   12615    +5003     
- Partials      106     117      +11     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[cotishq]

@NucleoFusion @qcserestipy , would like your attention here, like i have to patch those codecov report or its normal to be there and also happy to make changes once you review this

[qcserestipy]

@cotishq Thank you for your contribution! LGTM, and you can ignode the codecov failed pipelines for now