feat: rename to FabledScryer, multi-dashboard system, plugin management, branding

- Rename package fablednetmon → fabledscryer throughout
- Multi-dashboard: ownership, per-user defaults, HTMX edit (add/remove/reorder)
- Read-only share tokens scoped to individual dashboards
- Dashboard edit is HTMX-driven (no page reloads)
- Plugin management system: remote catalog, download/install, hot-reload, in-app restart
- plugin_index.py: fetch/cache remote index.yaml; default URL → bvandeusen/fabledscryer-plugins
- plugin_manager.py: download_and_install_plugin, hot_reload_plugin, restart_app
  - ZIP extraction handles GitHub archive formats (name-v1.0.0/, name-main/)
- Settings split into tabbed sections: General, Notifications, Ansible, Plugins
- Plugins tab: catalog browser (HTMX), install/activate/update/restart actions
- UI/branding: dark palette (#07071a), crystal ball SVG logo, animated star field,
  Libertinus Serif applied to headings, nav, labels, and section titles
- Widget registry (core/widgets.py) for dashboard plugin integration
- UPS widget.html (dashboard card) and settings/_tabs.html include
- Migrations 0005–0008: dashboards, is_default, ownership, share tokens
- docs/plugins/: writing-a-plugin.md updated with publishing guide,
  index.yaml.example template for fabledscryer-plugins repo

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

fabledscryer/templates/dns/index.html

@@ -0,0 +1,16 @@
+{% extends "base.html" %}
+{% block title %}DNS Monitor — Fabled Scryer{% endblock %}
+{% block content %}
+<div style="display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem;">
+  <h1 class="page-title" style="margin-bottom:0;">DNS Monitor</h1>
+  <span style="color:var(--text-muted);font-size:0.85rem;">polling every {{ poll_interval }}s</span>
+</div>
+<div class="card ping-card">
+  <div id="dns-rows"
+       hx-get="/dns/rows"
+       hx-trigger="every {{ poll_interval }}s"
+       hx-swap="innerHTML">
+    {% include "dns/rows.html" %}
+  </div>
+</div>
+{% endblock %}

fabledscryer/templates/dns/rows.html

@@ -0,0 +1,29 @@
+{% if hosts %}
+{% for host in hosts %}
+{% set d = latest.get(host.id) %}
+<div class="ping-row">
+  <div class="ping-meta">
+    <span class="ping-name">{{ host.name }}</span>
+    <span class="ping-addr">{{ host.address }}</span>
+  </div>
+  <div style="flex:1;">
+    {% if d is none %}
+      <span style="color:var(--text-dim);font-size:0.85rem;">—</span>
+    {% elif d.status.value == 'resolved' %}
+      <span class="dot dot-up" style="margin-right:0.5rem;"></span>
+      <span style="font-size:0.85rem;color:var(--green);">{{ d.resolved_ip or 'resolved' }}</span>
+    {% else %}
+      <span class="dot dot-down" style="margin-right:0.5rem;"></span>
+      <span style="font-size:0.85rem;color:var(--red);">Failed</span>
+    {% endif %}
+  </div>
+  <div class="ping-cur">
+    {% if d %}
+      <span style="color:var(--text-muted);font-size:0.75rem;">{{ d.resolved_at.strftime('%H:%M:%S') }} UTC</span>
+    {% endif %}
+  </div>
+</div>
+{% endfor %}
+{% else %}
+<p class="empty" style="padding:0.5rem 0;">No DNS-enabled hosts. <a href="/hosts/">Enable DNS on a host →</a></p>
+{% endif %}