Change Details

``` This commit coalesces the chainstate loading sequence between our unit test and non-unit test init codepaths. ``` Partial backport of core#23280: https://github.com/bitcoin/bitcoin/pull/23280/commits/9a5a5a3d08b2c130ab9147914739ff3583b0dc84 Depends on D12582.

``` This commit coalesces the chainstate loading sequence between our unit test and non-unit test init codepaths. ``` Partial backport of [[https://github.com/bitcoin/bitcoin/pull/23280 | core#23280]]: https://github.com/bitcoin/bitcoin/pull/23280/commits/9a5a5a3d08b2c130ab9147914739ff3583b0dc84 Depends on D12582.

``` This commit coalesces the chainstate loading sequence between our unit test and non-unit test init codepaths. ``` Partial backport of [[https://github.com/bitcoin/bitcoin/pull/23280 | core#23280:]]: https://github.com/bitcoin/bitcoin/pull/23280/commits/9a5a5a3d08b2c130ab9147914739ff3583b0dc84 Depends on D12582.