feat(fuzz): add jq_fuzz target for jq builtin#1111
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Add fuzz target for the jq builtin which has a complex custom filter expression parser (jaq) processing arbitrary JSON data — high crash and ReDoS risk. The target splits fuzz input into a filter expression (first line) and JSON data (remainder), then exercises the jq builtin through the interpreter with tight resource limits. Includes scaffold tests validating the jq builtin handles valid filters, malformed JSON, invalid filters, deeply nested expressions, and null bytes without panicking. Closes #1094
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Summary
jqbuiltin (~1572 LOC) which has a complex custom filter expression parser (jaq) processing arbitrary JSON datajq '<filter>'andjq -r '<filter>'through the full interpreter with tight resource limitsChanges
fuzz/fuzz_targets/jq_fuzz.rs: fuzz targetfuzz/Cargo.toml: added[[bin]]entry forjq_fuzztests/jq_fuzz_scaffold_tests.rs: 5 scaffold tests (valid filter, malformed JSON, invalid filter, deep nesting, null bytes)Test plan
cargo test --test jq_fuzz_scaffold_tests— 5 tests passcargo clippy --all-targets --all-features -- -D warnings— cleancargo fmt --check— cleanCloses #1094