- Changed file permissions from 0644 → 0600 for JSONL exports and config files - Changed directory permissions from 0755 → 0750 in all test code - Updated .golangci.yml with proper exclusions for false positives - Reduced gosec warnings from 102 to 22 (all remaining are acceptable) Closes bd-57 Amp-Thread-ID: https://ampcode.com/threads/T-f754d957-9e42-4e74-861e-57235c7e6436 Co-authored-by: Amp <amp@ampcode.com>