Add section 8.4 to SPECIFICATION.md describing the flat BOM flattening
and assembly cost roll-up endpoints with example request/response JSON.
- GET /api/items/{pn}/bom/flat — consolidated leaf parts with
rolled-up quantities and cycle detection
- GET /api/items/{pn}/bom/cost — per-line extended costs and total
assembly cost using standard_cost
Update endpoint count from 74 to 76 in SPECIFICATION.md and README.md.
Add checklist entries for flat BOM and assembly costing features.
Closes#3 — README now reflects the full scope of Silo.
- Updated subtitle: 'structured item database and part lifecycle server'
- 10 overview bullets covering all major features
- Complete component tree (internal/, cmd/, migrations/, docs/)
- Docker Compose quick start with config.yaml example
- Authentication section: local, LDAP/FreeIPA, OIDC/Keycloak, API tokens
- Client integrations section linking silo-mod and silo-calc repos
- Documentation table linking all docs/*.md files
