Phase 1: Pattern detectors & JSON field masking for HAR redaction
Follow-up to #31
Goal
Implement pattern detectors (JWT, bearer tokens, API key heuristics), query param redaction, and per-field JSON masking for request/response bodies.
Acceptance criteria
- Heuristic detection for JWT and bearer tokens with confidence scores.
- JSON path masking UI in Custom mode to allow masking specific fields.
- Preview evidence panel showing rule matches and confidence.
Notes
This work follows the Phase 0 MVP and will require UI changes in the Custom mode plus additional unit and functional tests.