bar-db daily time bug. align-series

[awb99]

problem:

• bar-db with bar-import for kibot for daily data should save to duckdb with time=exchange close time.
• then alignement with calendar should be easier.

in this notebook we load data that is aligned to a calendar. aligning data to a calendar is essential for multi-asset strategies.

notebook.playground.bardb.aligned this works with a single asset.

however this works only because in ta.env.core we have hack-time.

make it work withuot hack-time.