Release draw-vector-art v0.4.0

[ryanp7272]

What changed

• adds pose-first workflow metadata and validation for organic subjects
• renders pose landmarks and connections in debug overlays
• adds semantic and pixel-difference revision review artifacts
• distinguishes text-only scenes with referenceIntent: none
• expands the evaluation set with an articulated Great Dane task
• updates the packaged runtime, schema, documentation, and release metadata to v0.4.0

Why

The prior Great Dane test exposed that structurally valid SVG could still have an incoherent pose, and that a retry could make only minor facial edits while leaving the responsible body geometry unchanged. This release makes pose construction and revision effectiveness inspectable.

Validation

• npm run check: 42/42 tests passing
• official Codex plugin validation passed
• official Codex skill validation passed
• independent Great Dane forward test validated with 0 errors and 0 warnings