Ilya 62780c66be feat(model): domain model, node library, and SVG symbols
Add UI-agnostic model layer: typed grouped properties (string/int/float/
bool/enum/color/catalogue item(s)/value list), catalogue registry, port
relations with color schemes and compatibility rules, ports, node/edge
models, and DiagramDocument with change signals and JSON round-trip.
Include a starter node library (source/tank/pump/valve/junction/consumer/
transformer) with matching SVG symbols, plus model+document tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-02 23:13:18 +02:00

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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
<circle cx="46" cy="50" r="38" fill="#e8f5e9" stroke="#388e3c" stroke-width="4"/>
<path d="M48 18 L30 54 L46 54 L40 82 L64 44 L48 44 Z" fill="#388e3c"/>
<rect x="84" y="45" width="14" height="10" fill="#388e3c"/>
</svg>