feat: implement jq setpath, leaf_paths, and fix match/scan behavior #328
Description
Summary
5 jq spec tests are skipped due to limitations in the embedded jaq library.
Skipped tests
| Feature | Count | Notes |
|---|---|---|
| Alternative `//` | 1 | jaq errors on `.foo` applied to null instead of returning null |
| `setpath` | 1 | Not available in jaq standard library |
| `leaf_paths` | 1 | Not available in jaq standard library |
| `match` | 1 | jaq omits capture `name` field |
| `scan` | 1 | jaq needs explicit `"g"` flag for global match |
Options
- Implement missing functions as custom jaq extensions in bashkit
- Contribute upstream to jaq
- Accept as known limitations
Acceptance criteria
- Evaluate feasibility of each fix
- Implement where possible
- Unskip tests or document as permanent limitations