refactor(node): JSON-only control API, Node page absorbs the admin dashboard

Remove the node daemon's server-rendered admin UI (GET / and /audit, the
_render_* helpers and inline templates) and the `meshbay-node ui` CLI verb.
The loopback control API stays; it is now JSON only, ruff-clean, and 453
lines (was 1074). Also drop three never-wired endpoints (/api/config,
/api/chat/history, /ws/chat, plus broadcast_chat) and the pointless
18000/tcp firewall profiles.

The desktop client's Node page (static/node-page.js) takes over what the
dashboard showed, reorganised into six tabs (Overview, Groups, Roster,
Peers, Audit, Settings):
- Overview: version, node id, QUIC port, hub, index-cache maintenance
- Roster: node-wide view with unpin
- Peers and Audit: auto-load on open, no Load button
- Audit: real usernames and group names (resolved from the roster and
  node.toml), Previous/Next pagination newest-first, Export CSV of every
  matching row
- Settings: node settings, STUN, ICE, denylist, then Unlink from hub

Backend: audit.get_entries gains `offset`; /api/audit and /api/peers
resolve ids to names via a new _display_names helper; CSP tightened to
default-src 'none' now that no HTML is served. draft-v6 sections 2.11 and
2.12 corrected -- the Node page uses the loopback API, not MNP.

One capability is intentionally dropped: browser-based admin on a headless
server. The CLI covers every operation there.

See docs/refactor-node-ui.md.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MQCaZnde4Bjjdu84dhSuF5

1 files changed, 5 insertions, 1 deletions

diff --git a/packages/meshbay-node/tests/test_cli_dispatch.py b/packages/meshbay-node/tests/test_cli_dispatch.py
index d912b43..b676546 100644
--- a/packages/meshbay-node/tests/test_cli_dispatch.py
+++ b/packages/meshbay-node/tests/test_cli_dispatch.py
@@ -24,7 +24,6 @@ from meshbay_node import daemon as daemon_mod
 # would otherwise stop for a confirmation nobody can type in a test.
 VERBS = [
     ["status"],
-    ["ui"],
     ["group", "list"],
     ["group", "add"],                      # missing --dir: usage, then exit
     ["gek", "init"],
@@ -135,6 +134,11 @@ def test_the_verb_list_here_matches_the_parser():
         f"CLI verbs with no dispatch test: {sorted(untested)} — add them to "
         f"VERBS above")
 
+    # The server-rendered admin UI (and its `ui` verb) were removed in
+    # docs/refactor-node-ui.md phase 5. The control API stays; the browser
+    # page does not.
+    assert "ui" not in declared, "the `ui` verb came back"
+
 
 @pytest.mark.parametrize("argv,verb", [
     (["reload"], "reload"),