AC_BROKEN: text-003-regex-conformance, text-003-captures

RESULT: SUCCESS

FILES CHANGED:
- jq_interpreter/evaluator.py
- jq_interpreter/parser.py
- tests/test_text_003_regex.py

SUMMARY:
Regex implementation is covered by 5 passing focused tests; full suite passes: 167 tests. Both authoritative selectors match zero corpus cases because `sources/jq.test` contains no regex programs.

BLOCKERS:
- Staged corpus omission makes both acceptance assertions fail on `sum(summary.values()) > 0`.