audit m5. the active file is `?file=`, tree file rows and tabs are links, and a
`?file=` naming something that is not open now opens it — which is the part that makes
a pasted link actually work rather than just describe.
the open-tab *set* stays local state and i want that on the record as a choice, not an
omission. it is a working session, not an address: it grows without bound, every entry
costs a read on load, and nobody has ever linked someone else to a tab bar.
opt-in via a prop from the screen rather than the workspace identity the file browser
uses, because /code-editor renders CodeEditorView directly inside a Widget instead of
through the panel wrapper — there is no workspace to ask. a dashboard editor is
unchanged.
tree *folder* rows stay buttons, and unlike the file browser's folders this needs
nobody's call: expanding a directory is disclosure, not navigation.
two things fixed while in here. the tab close control was a role="button" span nested
inside the tab's own button — invalid before, and a nested interactive inside an anchor
after — so it is a sibling button with an aria-label now. and closeFile picked the
next-active file inside a setFiles updater, which is the impurity react double-invokes
in development to catch.
a path that fails to read is remembered, so a broken link errors once instead of once
per render, and the address is left alone rather than rewritten.
pastilhas
990ead93b9