Fix: Check the permission before request the compare API

[barnettZQG]

Description of your changes

Fixes #790

I have:

• Read and followed KubeVela's contribution process.
• Related Docs updated properly. In a new feature or configuration option, an update to the documentation is necessary.
• Run yarn lint to ensure the frontend changes are ready for review.
• Run make reviewableto ensure the server changes are ready for review.
• Added backport release-x.y labels to auto-backport this PR if necessary.

Special notes for your reviewer

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -11.40 ⚠️

Comparison is base (7bc6b2f) 61.22% compared to head (778901f) 49.83%.

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #802       +/-   ##
===========================================
- Coverage   61.22%   49.83%   -11.40%     
===========================================
  Files         109      109               
  Lines       19129    19129               
===========================================
- Hits        11712     9533     -2179     
- Misses       5975     8349     +2374     
+ Partials     1442     1247      -195     

Flag	Coverage Δ
apiserver-unittests	?
server-e2e-tests	49.83% <ø> (-0.10%)	⬇️

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see 46 files with indirect coverage changes

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[github-actions]

Successfully created backport PR #805 for release-1.8.