Merge branch 'refactor/groups-phase1'

Groups refactor, phases 1-3.

The root model replaces the old `upload` flag and group-wide `member_upload`
with per-root `writable`/`removable`/`ejected`, carried by a `RootSet` that
both front doors — the loopback API and signed MNP — reach through the same
`ops` functions. MNP goes to 1.1, additively: the roots table now rides on
`index_delta`, so a root added, removed, ejected or plugged reaches every
connected client instead of only whoever reloaded.

The group UI becomes a plugin architecture: an application is a registry
entry in `apps.js` plus its own files, with directories stored generically
by `ops.set_app_directories` under whatever the app is called. A reference
application, hidden behind `?dev=1`, is what makes that claim testable —
adding it is what found the two places still naming apps by hand.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011pvMdvLBG92jyhvD5pD6us

1 files changed, 2 insertions, 2 deletions

diff --git a/packages/meshbay-node/tests/test_apps_enabled_policy.py b/packages/meshbay-node/tests/test_apps_enabled_policy.py
index 671005a..ac44ab3 100644
--- a/packages/meshbay-node/tests/test_apps_enabled_policy.py
+++ b/packages/meshbay-node/tests/test_apps_enabled_policy.py
@@ -1,7 +1,7 @@
 """
 The operator decides which group "applications" (Chat, Files, ...) are shown.
 
-Same shape as `test_member_upload_policy.py`, because it is the same kind of
+Same shape as `test_root_writable_policy.py`, because it is the same kind of
 setting: changed by a signed operator instruction, stored on the node rather
 than the hub, and safe for an existing group to have never heard of. The two
 things specific to this one: the whole set is signed in one message rather
@@ -88,7 +88,7 @@ async def test_a_request_with_nobody_to_authorize_it_is_refused(tmp_path):
 
 async def test_changing_it_needs_a_signature(tmp_path):
     """The request only ever produces a challenge. Nothing is applied until a
-    signature over the transcript verifies — the same path as member_upload."""
+    signature over the transcript verifies — the same path as the root ops."""
     session = _session(tmp_path, "op", operator="op")
     session._has_admin_authority = lambda: True
     issued = []