Go engine that aggregates cybersecurity news and enriches CVEs. This
first commit lays the M0 foundation:
- config: fetch/enrich/cluster/rank/AI settings, YAML + validation,
defaults as named constants, AI opt-in and off by default
- source: Source registry with embedded default feeds (7 verified RSS
sources), external-file override, dedup/URL validation
- store: pure-Go SQLite (modernc), WAL + foreign_keys, forward-only
embedded migrations with schema_migrations tracking and a loud
newer-than-binary guard; ErrDuplicate sentinel for dedup
- cmd: cobra skeleton, version + sources wired, remaining commands
stubbed to their milestones
go vet / gofmt / go test all clean.
8b8eaafa1f