Obligation-First v0.4.1

Documentation-consistency patch from an external semantic review of the full repo. No vocabulary or validation-relevant schema change; adopter records from every prior version remain valid without migration.

• manifest.json - machine-readable release package manifest
• sha256.txt - SHA-256 checksum index
• RELEASE_NOTES-v0.4.1.md - release notes and verification summary
• /v1/context.jsonld - JSON-LD context
• /v1/schema/ - JSON Schemas
• /.well-known/assistant-guide.txt - GuideCheck assistant guide

Full version history: changelog.