The config bundle followed the old elevation gate: only an *elevated* admin
could browse or edit it. Bring it in line with the standing config-edit
model — a subtree admin / `a`-verb holder over the bundle's directory may
browse AND edit it without toggling. Elevation stays purely additive.
activeAdminForBundle → configEditorForBundle (zddc.IsConfigEditor, no
Elevated). Gates both the existence-hiding visibility check and the
ServeZipWrite path. Deliberately scoped to config-EDITORS, not all readers:
one .zddc.zip packs many subtrees' policy into a single file, so wide read
would leak a tightened subtree's rules — per-level transparency is served
by ServeZddcFile (already read-ACL'd) instead.
Client: isEditableZipMember drops the isElevated() check — the server gates
bundle visibility on config-edit authority, so if a member is visible the
session can edit it.
Tests: TestDispatchBundleAdminView now expects an un-elevated admin to SEE
the bundle (non-editor reader still 404); TestDispatchBundleAdminWrite adds
an un-elevated config-editor write.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
ZDDC
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