Canvas Paragraphs 1.0.0-alpha1

First release. Bridges Drupal Canvas Content Templates to Paragraph entities (Phase 1: paragraph support) visually design a paragraph type in the Canvas editor and have it render automatically wherever that paragraph appears.

Experimental: lifecycle tracks Canvas's own roadmap (drupal.org/project/canvas/issues/3498525), and the API may still change. Known gaps: no automated test coverage yet for the enum-field-mapping and quick-create mechanisms (verified manually so far).