fix: preserve Swagger tool authorization after refresh

[iamjoel]

Summary

• Prefer current provider team authorization when deriving agent tool credential status.
• Keep refreshed Swagger tools consistent with newly added tools and prevent false unauthorized publish checks.
• Add regression coverage for an authorized Swagger API tool loaded from saved agent configuration.

Fixes DIFY-2967

Checklist

• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.93%. Comparing base (59ee887) to head (80b6d9b).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #41656   +/-   ##
=======================================
  Coverage   86.93%   86.93%           
=======================================
  Files        5309     5309           
  Lines      306039   306038    -1     
  Branches    61329    61327    -2     
=======================================
  Hits       266061   266061           
+ Misses      34691    34690    -1     
  Partials     5287     5287           

Flag	Coverage Δ
dify-ui	93.75% <ø> (ø)
web	87.07% <100.00%> (+<0.01%)	⬆️

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