feat: add versioned topology reference migration

src/facade/index.ts

@@ -6,6 +6,8 @@ export { assertShapeHandleIntegrity, BitbybitGeometryRuntime, normalizeBitbybitM
 export { PROJECT_SCHEMA_MIGRATIONS, PROJECT_SCHEMA_SQL, PROJECT_SCHEMA_VERSION } from './projectSchema'
 export type { ApplyPlacementInput, BitBybitViewportAdapter, BitBybitWebCadFacade, BooleanCutInput, BooleanIntersectionInput, BooleanUnionInput, ChamferInput, CommandState, CreateBoxInput, CreateConeInput, CreateCylinderInput, CreateSphereInput, Diagnostic, DiagnosticRepairAction, DiagnosticRepairResult, DiagnosticTreeNode, DocumentObjectSnapshot, DocumentSnapshot, FacadeEvent, FacadeState, FilletInput, GeometryCapabilities, GeometryDocumentContext, GeometryFileExport, LinearFeatureParameters, MeshAsset, ModelTreeItem, ObjectPropertySnapshot, PadInput, PersistenceCapabilities, Placement, PlanarProfile, PocketInput, Point3, ProjectRecoveryReport, ProjectResource, ProjectSaveResult, ProjectSummary, PropertyValue, RecomputeResult, RevolutionInput, SetExpressionInput, SetPropertyInput, ShapeHandle, SubshapeRef, SubshapeTopology, TaskSnapshot } from './types'
 export { createEdgeSubshapeRefs, createSubshapeRefs, createVertexSubshapeRefs, matchSubshapes, signatureForEdge, signatureForFace, signatureForVertex } from './topologyNaming'
+export { createPersistedTopoRef, migrateTopoRefs, parseTopoRef, resolveTopoRef, serializeTopoRef } from './topologyReferences'
+export type { PersistedTopoRef, TopoRefResolution, TopologyMigration } from './topologyReferences'
 export { BasicSketchSolverAdapter, cloneSketch, createSketch, solveSketch } from './sketcher'
 export type { SketchConstraint, SketchDiagnostic, SketchGeometry, SketchPoint, SketchPointRef, SketchSnapshot, SketchSolveOptions, SketchSolveResult, SketchSolverAdapter, SketchSolverStatus } from './sketcher'
 export { createFacadeGeometryRecomputeExecutor, executeFacadeRecomputeNode, RecomputeCoordinator } from './recomputeEngine'