Following a phantom wikilink now ends with a way out instead of a dead
end: when the pond resolved and the page 404s as plain not_found, the
error screen offers creating the page in place. Title = the URL slug
(the PhantomPagesView mechanic), so every wikilink pointing at the
address resolves; the invalidated page query then mounts the editor on
the same URL. The affordance is deliberately ungated like the sidebar's
new-page button — the client cannot tell 'never existed' from 'not
readable' (#60), and a reader's POST surfaces as the regular 403
banner. The page_trashed branch (#31) is untouched.
Rides along: PhantomPagesView now also invalidates ['pond-links'] —
the graph views kept showing a just-created target as a phantom.
e2e pack create-missing-page.spec.ts (CI wiring lands with #119):
author a phantom link, follow it, create, backlink proves resolution;
reader path asserts the 403 banner and no editor mount.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
