Origin ↔ Continuum v1.0.0 (Canonical Definition + Evaluation Surfaces)

Canonical release of the Origin ↔ Continuum framework authored by Alyssa Solen.

Includes:

• Canonical definition
• Authorship and provenance clause
• Reference language specification
• Continuity criteria
• Negative cases
• Flagship case

This release establishes origin-dependent continuity as a citable, evaluable construct.