feat: move raise hand option in context menu behind feature flag [WPB-22795]

[zskhan]

WPB-22795 [Web] Hand raise UI shown despite feature flag disabled

Pull Request

Summary

Moved raise hand option in context menu behind feature flag

• What did I change and why?
• 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

❌ Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 45.26%. Comparing base (bfed0c6) to head (56923e8).
⚠️ Report is 1 commits behind head on dev.

Files with missing lines	Patch %	Lines
...components/calling/VideoControls/VideoControls.tsx	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #20433      +/-   ##
==========================================
- Coverage   45.26%   45.26%   -0.01%     
==========================================
  Files        1635     1635              
  Lines       40256    40257       +1     
  Branches     8326     8327       +1     
==========================================
- Hits        18223    18222       -1     
- Misses      20105    20106       +1     
- Partials     1928     1929       +1     

Flag	Coverage Δ
app_webapp	43.44% <0.00%> (-0.01%)	⬇️
lib_api_client	50.17% <ø> (ø)
lib_core	58.86% <ø> (ø)

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

Files with missing lines	Coverage Δ
...components/calling/VideoControls/VideoControls.tsx	30.48% <0.00%> (-0.17%)	⬇️

... and 1 file with indirect coverage changes

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[github-actions]

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🧪 Playwright Test Summary

• ✅ Passed: 9
• ❌ Failed: 0
• ⏭ Skipped: 4
• 🔁 Flaky: 1
• 📊 Total: 14
• ⏱ Total Runtime: 108.1s (~ 1 min 48 sec)

specs/CriticalFlow/conversationManagement-TC-8636.spec.ts (❌ 0 failed, ⚠️ 1 flaky)

• ⚠️ Conversation Management (tags: TC-8636, crit-flow-web)