Initial project import

src/bom/index.ts

@@ -0,0 +1,20 @@
+/**
+ * Bill of Materials module — public API.
+ *
+ * Pure logic:
+ *   computeBom(parts)            -> Bom (line items, cut lists, costs)
+ *   bomToCsv(bom)                -> sectioned CSV string
+ *   bomToText(bom)               -> printable plain-text shopping list
+ *   downloadBomCsv(bom, name)    -> trigger a browser .csv download
+ *
+ * UI:
+ *   <BomPanel onClose={...} />   -> self-contained drawer reading useBuilder
+ *
+ * Formatting helpers (used by the panel, exported for reuse):
+ *   formatDiameter, formatInches, formatMoney
+ */
+export { computeBom, formatDiameter, formatInches, formatMoney } from './computeBom';
+export { bomToCsv, bomToText, downloadBomCsv } from './csv';
+export { downloadBomPdf } from './pdf';
+export { BomPanel } from './BomPanel';
+export type { Bom, BomLine, CutList, CutStick, CategorySubtotal } from './types';