add: implement Optuna visualization utility with Dash

src/single-core-regen/util/optuna_vis.py

@@ -0,0 +1,18 @@
+from dash import Dash, dcc, html
+import logging
+import dash_bootstrap_components as dbc
+
+
+def show_figures(*figures):
+    for figure in figures:
+        figure.layout.template = 'plotly_dark'
+
+    app = Dash(external_stylesheets=[dbc.themes.DARKLY])
+    app.layout = html.Div([
+        dcc.Graph(figure=figure) for figure in figures
+    ])
+    log = logging.getLogger('werkzeug')
+    log.setLevel(logging.ERROR)
+
+    app.show = lambda *args, **kwargs: app.run_server(*args, **kwargs, debug=False)
+    return app