BREAKING EXPERIMENTAL: Holepunch-native hard migration (RPC core, shared storage, SDK v2)

BREAKING: All nodes must upgrade together. Legacy p2ns.core-request string
messages are rejected; invite/consensus control plane uses protomux-rpc
(invite.request, invite.ack, invite.relay*, consensus.*). Shared Corestore
namespaces are the default for plugin DBs and drives; USE_SHARED_CORESTORE_NAMESPACES=false
is debug-only. Admin plugin actions with params are validated before run.

EXPERIMENTAL: End-to-end RPC invite path reuses existing handlers via adapters;
invite wire still ships on the invite channel. Multi-peer invite/relay
integration tests are not in CI yet (core-rpc-smoke only).

SDK & channels:
- channel-rpc.js, sdk.channels.rpc (register/request/event)
- core-rpc.js for p2ns.core; action-params + plugin route validation
- sdk.db.getCore/reopen, sdk.state.getPeerChannelSnapshot,
  sdk.metrics.getHolepunchStats (schema v1)

Runtime:
- p2ns.js: RPC-first core invite/consensus; Hyperswarm firewall/reconnect
- channel-manager: required protomux-rpc per peer
- db-shared-namespace-migration; drive-manager shared namespaces
- proxy-server: invite.request RPC for joiners

Plugins: file.drop, global.profile, peer.directory, domain.consensus,
peer.visualize, example.plugin (RPC demo); peer.directory UI polish

Also: CI/smoke scripts, diagnostics hardening, plugin config schema validation,
admin action param modal, docs/RFCS, package-lock + engines.node >= 18

plugin-sites/peer.directory/www/css/style.css

@@ -204,6 +204,42 @@ body {
   align-items: center;
 }
 
+.quick-links {
+  background: var(--bg-glass);
+  border: 1px solid var(--border-color);
+  border-radius: var(--radius-lg);
+  padding: var(--spacing-md);
+}
+
+.quick-links-title {
+  font-size: 0.95rem;
+  color: var(--text-secondary);
+  margin-bottom: var(--spacing-sm);
+}
+
+.quick-links-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
+  gap: var(--spacing-sm);
+}
+
+.quick-link-card {
+  display: block;
+  padding: var(--spacing-sm) var(--spacing-md);
+  border: 1px solid var(--border-color);
+  border-radius: var(--radius-sm);
+  background: rgba(15, 20, 30, 0.6);
+  color: var(--text-primary);
+  text-decoration: none;
+  transition: all var(--transition-base);
+}
+
+.quick-link-card:hover {
+  border-color: rgba(99, 102, 241, 0.7);
+  background: rgba(99, 102, 241, 0.2);
+  text-decoration: none;
+}
+
 /* Buttons */
 .btn {
   padding: var(--spacing-sm) var(--spacing-md);
@@ -405,6 +441,11 @@ td {
   color: white;
 }
 
+.badge-plugin {
+  background: var(--warning);
+  color: #111827;
+}
+
 /* Links */
 a {
   color: var(--primary-light);