feat(hub): Phase 10.1–10.4 — Site overlay + admin/moderation UI

- Site overlay: landing page, /about, /downloads (dark/light, responsive)
- User role column (user/moderator/admin) with config-based admin sync
- require_moderator dependency + admin API (8 endpoints: stats, users,
  groups, audit logs)
- Admin SPA panel at #/admin with 5 tabs (stats, users, groups, logs,
  blocklist) — visible only to moderators/admins
- SPA also served at /app/ for Caddy site overlay integration
- GET /v1/users/me returns current user role
- 15 new tests, 147 total passing

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 203 insertions, 0 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/style.css b/packages/meshbay-hub/src/meshbay_hub/static/style.css
index 27e645e..b1b1a7e 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/style.css
+++ b/packages/meshbay-hub/src/meshbay_hub/static/style.css
@@ -767,6 +767,209 @@ button:disabled { opacity: 0.5; cursor: not-allowed; }
 .play-btn:hover { background: var(--bg-raised); border-color: var(--success); }
 .play-btn:disabled { opacity: 0.3; cursor: not-allowed; }
 
+/* ── Admin panel ─────────────────────────────────────────────────────────── */
+
+.admin-tabs {
+  display: flex;
+  gap: 4px;
+  margin-bottom: 20px;
+  border-bottom: 2px solid var(--border);
+  flex-wrap: wrap;
+}
+
+.admin-tab {
+  padding: 8px 16px;
+  border: none;
+  background: none;
+  color: var(--text-secondary);
+  font-size: 0.9em;
+  cursor: pointer;
+  border-bottom: 2px solid transparent;
+  margin-bottom: -2px;
+  transition: color 0.15s, border-color 0.15s;
+}
+.admin-tab:hover { color: var(--text); }
+.admin-tab.active {
+  color: var(--accent);
+  border-bottom-color: var(--accent);
+  font-weight: 600;
+}
+
+.admin-stats {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
+  gap: 16px;
+  margin-bottom: 20px;
+}
+
+.stat-card {
+  background: var(--bg-surface);
+  border: 1px solid var(--border);
+  border-radius: 8px;
+  padding: 20px;
+  text-align: center;
+}
+.stat-card .stat-value {
+  font-size: 2rem;
+  font-weight: 700;
+  color: var(--accent);
+}
+.stat-card .stat-label {
+  font-size: 0.8em;
+  text-transform: uppercase;
+  letter-spacing: 0.04em;
+  color: var(--text-dim);
+  margin-top: 4px;
+}
+
+.admin-toolbar {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  margin-bottom: 12px;
+  flex-wrap: wrap;
+}
+
+.admin-search {
+  flex: 1;
+  min-width: 180px;
+  max-width: 300px;
+  padding: 7px 12px;
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  background: var(--bg-base);
+  color: var(--text);
+  font-size: 0.9em;
+}
+.admin-search:focus { outline: none; border-color: var(--border-focus); }
+
+.admin-select {
+  padding: 7px 10px;
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  background: var(--bg-base);
+  color: var(--text);
+  font-size: 0.85em;
+  cursor: pointer;
+}
+
+.admin-table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 0.88em;
+}
+.admin-table th {
+  text-align: left;
+  padding: 8px 10px;
+  border-bottom: 2px solid var(--border);
+  color: var(--text-secondary);
+  font-size: 0.8em;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.04em;
+  white-space: nowrap;
+}
+.admin-table td {
+  padding: 8px 10px;
+  border-bottom: 1px solid var(--border);
+  vertical-align: middle;
+}
+.admin-table tr:hover { background: var(--bg-raised); }
+.admin-table .admin-empty {
+  text-align: center;
+  padding: 24px;
+  color: var(--text-dim);
+  font-style: italic;
+}
+
+.admin-actions { display: flex; gap: 6px; }
+
+.admin-btn {
+  padding: 4px 10px;
+  border: 1px solid var(--border);
+  border-radius: 5px;
+  background: var(--bg-base);
+  color: var(--text);
+  font-size: 0.82em;
+  cursor: pointer;
+  white-space: nowrap;
+}
+.admin-btn:hover { border-color: var(--accent); color: var(--accent); }
+.admin-btn.danger { color: var(--error); }
+.admin-btn.danger:hover { border-color: var(--error); }
+.admin-btn:disabled { opacity: 0.4; cursor: not-allowed; }
+
+.admin-role-select {
+  padding: 3px 6px;
+  border: 1px solid var(--border);
+  border-radius: 4px;
+  background: var(--bg-base);
+  color: var(--text);
+  font-size: 0.85em;
+  cursor: pointer;
+}
+
+.admin-detail-overlay {
+  position: fixed;
+  inset: 0;
+  z-index: 150;
+  background: rgba(0, 0, 0, 0.5);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.admin-detail-card {
+  background: var(--bg-surface);
+  border: 1px solid var(--border);
+  border-radius: 12px;
+  padding: 24px;
+  min-width: 340px;
+  max-width: 90vw;
+  box-shadow: var(--shadow-lg);
+}
+
+.admin-detail-card h3 {
+  margin-bottom: 16px;
+  font-size: 1.1em;
+}
+
+.admin-detail-row {
+  display: flex;
+  justify-content: space-between;
+  padding: 6px 0;
+  font-size: 0.9em;
+}
+.admin-detail-row + .admin-detail-row {
+  border-top: 1px solid var(--border);
+}
+.admin-detail-label { color: var(--text-secondary); }
+.admin-detail-value { font-weight: 500; }
+
+.admin-load-more {
+  display: block;
+  margin: 16px auto;
+  padding: 8px 24px;
+}
+
+.blocklist-form {
+  display: flex;
+  gap: 8px;
+  margin-bottom: 16px;
+  flex-wrap: wrap;
+}
+.blocklist-form input {
+  flex: 1;
+  min-width: 180px;
+  padding: 7px 12px;
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  background: var(--bg-base);
+  color: var(--text);
+  font-size: 0.9em;
+}
+.blocklist-form input:focus { outline: none; border-color: var(--border-focus); }
+
 /* ── Overlay (mobile sidebar backdrop) ────────────────────────────────────── */
 
 .overlay {