fix(api-client): Remove temporary hack for /websocket prefix [WPB-23436]

[thisisamir98]

WPB-23436 [Web] Update WebSocket connection logic to fallback from /websocket to /await on 404

Pull Request

Summary

• What did I change and why?
  /websocket is no longer needed.

• Risks and how to roll out / roll back (e.g. feature flags):

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Security Checklist (required)

• External inputs are validated & sanitized on client and/or server where applicable.
• API responses are validated; unexpected shapes are handled safely (fallbacks or errors).
• No unsafe HTML is rendered; if unavoidable, sanitization is applied and documented where it happens.
• Injection risks (XSS/SQL/command) are prevented via safe APIs and/or escaping.

Accessibility (required)

• I have read and this PR upholds our Accessibility Best Practices.

Standards Acknowledgement (required)

• I have read and this PR upholds our Coding Standards and Tech Radar Choices.

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Screenshots or demo (if the user interface changed)

Notes for reviewers

• Trade-offs:
• Follow-ups (linked issues):
• Linked PRs (e.g. web-packages):

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 45.40%. Comparing base (b1a432f) to head (c7ba1ae).
⚠️ Report is 3 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev   #20511   +/-   ##
=======================================
  Coverage   45.40%   45.40%           
=======================================
  Files        1637     1637           
  Lines       40364    40360    -4     
  Branches     8334     8332    -2     
=======================================
- Hits        18326    18325    -1     
+ Misses      20101    20100    -1     
+ Partials     1937     1935    -2     

Flag	Coverage Δ
app_webapp	43.60% <ø> (+<0.01%)	⬆️
lib_api_client	50.17% <ø> (+<0.01%)	⬆️
lib_core	59.05% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
libraries/api-client/src/tcp/WebSocketClient.ts	70.17% <ø> (+0.68%)	⬆️

... and 1 file with indirect coverage changes

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[github-actions]

🔗 Download Full Report Artifact

🧪 Playwright Test Summary

• ✅ Passed: 10
• ❌ Failed: 0
• ⏭ Skipped: 4
• 🔁 Flaky: 0
• 📊 Total: 14
• ⏱ Total Runtime: 90.7s (~ 1 min 31 sec)