Partially backport only the `get_hist()` exception catch from
0846cbd4a4, authored by goodboy
<goodboy_foss@protonmail.com>. Keep the existing gap fallback.
A timed-out IB query raises `NoData` from null-segment repair.
Letting it escape cancels sibling history and live quote tasks
while `pikerd` can remain alive. Catch `NoData` and
`DataUnavailable` locally and stop querying this repair pass.
Add a regression using real null detection and a waiting sibling
in the same nursery. Both provider failures must return without
canceling the sibling. The two cases failed before this catch;
the focused history files passed 17 tests with it.
Partial-backport-of: 0846cbd4a4
Prompt-IO: ai/prompt-io/20261106T185628Z_495c0915_215e9b_prompt_io.md
(this patch was generated in some part by `codex` (`openai`))
Gud Boi