docs(design): drawing-card wireframe set + SVG-substrate schema (T-317)

Seven Frame0 wireframes for the conversation drawing-card family — image
annotation, icon glyph, svg, d2, compare, graph, and the core dispatch
shell — plus the draft JSON schema refined from them. Schema follows the
SVG-substrate model (D-103): document envelope, bounded SVG subset, a
data-* Flutter overlay for captions/lightbox, templates lower to SVG.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-06-28 22:18:53 +02:00
co-authored by Claude Opus 4.8
parent e9f394ff0f
commit e2d9542fe8
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