fix(tools): document inline SVG path rendering

Document the supported inline SVG path route in the render tool prompt.

Keep coverage focused on separate open and closed stroked vector paths.

packages/core/src/tools/create/render.ts

@@ -4,7 +4,7 @@ export const render = defineTool({
   name: 'render',
   mutates: true,
   description:
-    'Render JSX to design nodes. Use replace_id to swap a skeleton placeholder with real content (keeps position in parent). Example: <Frame name="Card" w={320} h="hug" flex="col" gap={16} p={24} bg="#FFF" rounded={16}><Text size={18} weight="bold">Title</Text></Frame>',
+    'Render JSX to design nodes. Supports inline SVG paths, including open stroked paths: <svg viewBox="0 0 24 24" size={24}><path d="M2 12 L22 12" stroke="#000" fill="none" /></svg>. Use replace_id to replace a placeholder while preserving its position.',
   params: {
     replace_id: {
       type: 'string',

tests/engine/render/jsx/gaps.test.ts

@@ -27,6 +27,20 @@ describe('jsx gaps', () => {
     expect(vector?.vectorNetwork).toBeTruthy()
   })
 
+  it('renders open and closed SVG paths as separate stroked vectors', async () => {
+    const g = makeSceneGraph()
+    await renderJSX(
+      g,
+      `<svg viewBox="0 0 24 24" size={24}><path d="M2 2 L22 2" stroke="#000" fill="none" /><path d="M2 6 H22 V22 H2 Z" stroke="#000" fill="none" /></svg>`
+    )
+    const vectors = [...g.nodes.values()].filter((node) => node.type === 'VECTOR')
+    expect(vectors).toHaveLength(2)
+    for (const vector of vectors) {
+      expect(vector.vectorNetwork?.vertices.length).toBeGreaterThan(0)
+      expect(vector.strokes.length).toBeGreaterThan(0)
+    }
+  })
+
   it('instance overrides apply child text by name', async () => {
     const g = makeSceneGraph()
     await renderJSX(