Fix language_version for non-Python in optimization_review

Use current_language_support().language_version instead of
hardcoded Python-only detection, so Java/JS/TS get their
version populated correctly.

Author: KRRT7

codeflash/api/aiservice.py

@@ -840,7 +840,7 @@ def get_optimization_review(
             "codeflash_version": codeflash_version,
             "calling_fn_details": calling_fn_details,
             "language": language,
-            "language_version": platform.python_version() if current_language() == Language.PYTHON else None,
+            "language_version": current_language_support().language_version,
             "call_sequence": self.get_next_sequence(),
         }
         console.rule()