- docs: fix cross-class note links (../feature/...), mirror the membership
reuse criterion in README.zh.md and the connectWorkspace architecture
note (EN/ZH/sidecars re-recorded)
- test(client): stray + member blank at the same path — the scan skips the
stray and reuses the member
- test(web): re-registration after delete now mints a fresh blank session
(the old cwd-only reuse is gone), so the account is no longer empty;
assert the retained seeded session is still not re-adopted
The blank-session reuse scan in connectWorkspace matched on cwd alone, so a
live blank session the CLI/TUI birthed at the host cwd (never accounted to
any workspace) was hijacked when + was clicked on a workspace registered at
that path, opening a session the sidebar shows under Ungrouped instead of
the clicked workspace. Reuse now also requires membership in the workspace's
sessionIds (the host's own membership rule); cwd-only matches fall through
to session.create({workspaceId}).
Fixes#1647
