v1.111.0

Changed

• to_auto dispatches through the plot plugin registry (A1 Phase 2). The built-in chart types (bar, box_whisker, curve, line, heatmap, histogram, volume, panes) are registered as thin wrappers (bencher/plugins/builtins.py) that delegate to the existing renderer methods — renderer logic and report output are unchanged (priorities encode the legacy callback order; parity covered in test/test_plugins_builtins.py). What changes: user plugins registered with @bencher.plot_plugin / bencher.register_plugin or shipped via the bencher.plot_plugins entry-point group now appear in reports automatically; built-ins can be overridden by registering the same (name, backend); plot_list/remove_plots accept plugin names ("line", "heatmap", ...) alongside the legacy callables (which keep working, unknown callables via direct call); and to_auto(backend=...) states a preferred rendering backend — chart types the preferred backend implements swap to it, the rest keep their best other implementation.
• New BenchResult.to_bench_data() builds the frozen BenchData contract from a live result (first step of the A3 data-contract migration). Transitional BenchData.legacy_result/render_kwargs fields carry the live result and plot kwargs for the wrapped built-ins; they are not part of the stable plugin contract and disappear when renderers consume BenchData directly.