RESULT: SUCCESS

FILES CHANGED:
- jq_interpreter/parser.py
- jq_interpreter/evaluator.py
- tests/test_value_004.py

SUMMARY:
Implemented VALUE-004 type, length, UTF-8 length, conversions, numeric predicates, and math builtins. Scoped conformance: 18 passed, 0 failed, 0 errored. Tests: 76 passed.

BLOCKERS:
- None