* fix(sources): GitHub Projects boards read from the task page's source host
The Projects board, its project picker and unmatched-row edits picked their
host from the Active Server setting on their own, while the Tasks header
named the selected repositories' hosts. The board now takes the same
row-less source host that Linear and Jira use, converted through
getTaskSourceRuntimeSettings, and the header names that host in Projects
mode. fetchProjectViewTable takes the source explicitly instead of reading
settings. The ownership table marks the four board-level GitHub Projects
reads as scope-picked.
* fix(github-projects): an open unmatched-row dialog keeps writing to its row's host
The dialog took the board's live source, so a source change while it was
open sent its comment and field edits to a different host than the one the
row was loaded from. It now routes by the source encoded in its row's cache
key, like the row field edits already do.
---------
Co-authored-by: m4air <m4air@Mac.localdomain>