chore: move API readiness reporting to terminal output

[hyoban]

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Summary

close #36432

Screenshots

Before	After
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Checklist

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran make lint && make type-check (backend) and cd web && pnpm exec vp staged (frontend) to appease the lint gods

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.02%. Comparing base (de38bba) to head (47a1c89).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #36433   +/-   ##
=======================================
  Coverage   86.02%   86.02%           
=======================================
  Files        4478     4478           
  Lines      213494   213494           
  Branches    39681    39681           
=======================================
  Hits       183666   183666           
  Misses      26565    26565           
  Partials     3263     3263           

Flag	Coverage Δ
dify-ui	94.80% <ø> (ø)
web	86.57% <ø> (ø)

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