RESULT: FAILED

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

SUMMARY:
Implemented parser postfix binding support, pattern validation, arithmetic/string/object operations, core builtins, and safer oversized string handling. Local tests pass: 32 passed. Scoped conformance remains failing: PARSE-003 115 passed/94 failed; PARSE-004 87 passed/124 failed.

BLOCKERS:
- Significant evaluator and advanced jq builtin coverage remains incomplete.

FAILURE_SUMMARY: Scoped conformance criteria still fail.
FAILURE_DETAIL: Both authoritative acceptance checks ran successfully but reported failing corpus cases; further implementation is required across advanced builtins, assignments, function scoping, destructuring, and control semantics.