v0.5.0

Minor Changes

• a8186b2: Replace center-pin connection strategy with boundary auto-pins (4 per side, 16 total) for more natural edge attachment positions. Add Symbol.dispose support to RoutingSession for TC39 explicit resource management. init() now warns when called again with a different wasmPath. RoutingSession.addEdge() now validates port pin classes and rejects self-loop edges. writeRoutesToGraph throws on missing owner node instead of silently skipping. getWasmPath() provides descriptive errors when libavoid-js is missing.

Patch Changes

• a8186b2: Fix inferSide to handle zero-length edge segments (identical source and target points) by defaulting to east/west instead of falling through ambiguous comparison logic.
• a8186b2: Fix WASM memory leaks: wrap extractRoutes and createLibavoidSession in try/finally to ensure all Emscripten objects (displayRoute, Point, Rectangle, ConnEnd) are freed on error. Replace freeWasm(obj: any) with freeWasm(obj: unknown) using runtime type narrowing.
• a8186b2: Improve parser validation: detect duplicate node, edge, and port IDs; reject nodes with zero or negative dimensions. Support explicit port.side and elk.port.side properties on ports (case-insensitive), falling back to positional inference when not set.