fix(chart-controls): fix RadioButtonControl crash on empty options and false values

[madhushreeag]

SUMMARY

• Fixed a runtime crash in RadioButtonControl when rendered with an empty options array — normalizedOptions[0] was undefined, causing "Cannot read properties of undefined (reading 'value')"
  • Fixed a secondary bug where a falsy-but-valid initialValue (e.g. 0 or false) was silently ignored due to use of || instead of ??

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 64.31%. Comparing base (b06c6b7) to head (1792e39).
⚠️ Report is 13 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #41170   +/-   ##
=======================================
  Coverage   64.31%   64.31%           
=======================================
  Files        2652     2652           
  Lines      144807   144807           
  Branches    33423    33423           
=======================================
  Hits        93132    93132           
  Misses      50007    50007           
  Partials     1668     1668           

Flag	Coverage Δ
javascript	68.45% <100.00%> (ø)

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