fix: include BOOLEAN_OPERATION in SVG container collapse

src/extractors/built-in.ts

@@ -207,11 +207,13 @@ export const layoutOnly = [layoutExtractor];
 
 /**
  * Node types that can be exported as SVG images.
- * When a FRAME, GROUP, or INSTANCE contains only these types, we can collapse it to IMAGE-SVG.
- * Note: FRAME/GROUP/INSTANCE are NOT included here—they're only eligible if collapsed to IMAGE-SVG.
+ * When a FRAME, GROUP, INSTANCE, or BOOLEAN_OPERATION contains only these types, we can collapse
+ * it to IMAGE-SVG. BOOLEAN_OPERATION is included because it's both a collapsible container AND
+ * SVG-eligible as a child (boolean ops always produce vector output).
  */
 export const SVG_ELIGIBLE_TYPES = new Set([
   "IMAGE-SVG", // VECTOR nodes are converted to IMAGE-SVG, or containers that were collapsed
+  "BOOLEAN_OPERATION",
   "STAR",
   "LINE",
   "ELLIPSE",
@@ -222,7 +224,7 @@ export const SVG_ELIGIBLE_TYPES = new Set([
 /**
  * afterChildren callback that collapses SVG-heavy containers to IMAGE-SVG.
  *
- * If a FRAME, GROUP, or INSTANCE contains only SVG-eligible children, the parent
+ * If a FRAME, GROUP, INSTANCE, or BOOLEAN_OPERATION contains only SVG-eligible children, the parent
  * is marked as IMAGE-SVG and children are omitted, reducing payload size.
  *
  * @param node - Original Figma node
@@ -238,7 +240,10 @@ export function collapseSvgContainers(
   const allChildrenAreSvgEligible = children.every((child) => SVG_ELIGIBLE_TYPES.has(child.type));
 
   if (
-    (node.type === "FRAME" || node.type === "GROUP" || node.type === "INSTANCE") &&
+    (node.type === "FRAME" ||
+      node.type === "GROUP" ||
+      node.type === "INSTANCE" ||
+      node.type === "BOOLEAN_OPERATION") &&
     allChildrenAreSvgEligible &&
     !hasImageFillInChildren(node)
   ) {

src/tests/tree-walker.test.ts

@@ -105,6 +105,59 @@ describe("extractFromDesign", () => {
   });
 });
 
+describe("collapseSvgContainers", () => {
+  it("collapses BOOLEAN_OPERATION nodes to IMAGE-SVG", async () => {
+    const booleanOpNode = makeNode({
+      id: "5:1",
+      name: "Combined Shape",
+      type: "BOOLEAN_OPERATION",
+      booleanOperation: "UNION",
+      children: [
+        makeNode({ id: "5:2", name: "Circle", type: "ELLIPSE" }),
+        makeNode({ id: "5:3", name: "Square", type: "RECTANGLE" }),
+      ],
+    });
+
+    const { nodes } = await extractFromDesign([booleanOpNode], allExtractors, {
+      afterChildren: collapseSvgContainers,
+    });
+
+    expect(nodes).toHaveLength(1);
+    expect(nodes[0].type).toBe("IMAGE-SVG");
+    expect(nodes[0].children).toBeUndefined();
+  });
+
+  it("collapses a frame containing a BOOLEAN_OPERATION to IMAGE-SVG", async () => {
+    const frameWithBoolOp = makeNode({
+      id: "6:1",
+      name: "Icon Frame",
+      type: "FRAME",
+      children: [
+        makeNode({
+          id: "6:2",
+          name: "Union",
+          type: "BOOLEAN_OPERATION",
+          booleanOperation: "UNION",
+          children: [
+            makeNode({ id: "6:3", name: "A", type: "RECTANGLE" }),
+            makeNode({ id: "6:4", name: "B", type: "ELLIPSE" }),
+          ],
+        }),
+      ],
+    });
+
+    const { nodes } = await extractFromDesign([frameWithBoolOp], allExtractors, {
+      afterChildren: collapseSvgContainers,
+    });
+
+    // The BOOLEAN_OPERATION collapses to IMAGE-SVG first (bottom-up),
+    // then the FRAME sees all children are SVG-eligible and collapses too.
+    expect(nodes).toHaveLength(1);
+    expect(nodes[0].type).toBe("IMAGE-SVG");
+    expect(nodes[0].children).toBeUndefined();
+  });
+});
+
 describe("simplifyRawFigmaObject", () => {
   it("produces a complete SimplifiedDesign from a mock API response", async () => {
     const mockResponse = {