add: support agent control sensor creation in UI

[ozgen]

What

• add UI support for creating agent control sensors
• implement form and input handling

Why

• enable users to create agent control sensors from the UI
• align frontend with the backend capabilities

References

GEA-1735

Checklist

• Tests

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Snapshot Warnings

⚠️: No snapshots were found for the head SHA c475017.

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Scanned Files

None

[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.75%. Comparing base (5124199) to head (c475017).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/web/pages/scanners/ScannerComponent.tsx	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5253      +/-   ##
==========================================
- Coverage   78.75%   78.75%   -0.01%     
==========================================
  Files        1193     1193              
  Lines       31288    31287       -1     
  Branches     9357     9356       -1     
==========================================
- Hits        24642    24640       -2     
- Misses       5962     5963       +1     
  Partials      684      684              

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