feat: RAW metadata

[br4vesirrobin]

Summary

• add fixture-backed RAW profile metadata fields (locale, release year, jurisdiction, source tier)
• expose RAW profile metadata on RAW catalog annotations
• validate invalid RAW profile values without changing parser support status

Validation

• cargo test --test stabu_raw
• cargo clippy --all-targets --all-features -- -D warnings
• cargo test --all-targets --all-features
• cargo check --all-targets --all-features

Autobahn slice: GCS-009 RAW profile metadata.