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>

docker-compose.yml

@@ -5,8 +5,11 @@ services:
       - "5000:5000"
     volumes:
       - app_data:/data
+      - ./plugins:/app/plugins:ro
+      # Uncomment to enable Traefik access log ingestion (set access_log.enabled: true in plugin config):
+      - /mnt/Data/traefik/log:/var/log/traefik:ro
     environment:
-      - FABLEDNETMON_DATABASE_URL=postgresql+asyncpg://fablednetmon:fablednetmon@db/fablednetmon
+      - FABLEDSCRYER_DATABASE_URL=postgresql+asyncpg://fabledscryer:fabledscryer@db/fabledscryer
     depends_on:
       db:
         condition: service_healthy
@@ -15,13 +18,13 @@ services:
   db:
     image: postgres:16-alpine
     environment:
-      POSTGRES_USER: fablednetmon
-      POSTGRES_PASSWORD: fablednetmon
-      POSTGRES_DB: fablednetmon
+      POSTGRES_USER: fabledscryer
+      POSTGRES_PASSWORD: fabledscryer
+      POSTGRES_DB: fabledscryer
     volumes:
       - pgdata:/var/lib/postgresql/data
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U fablednetmon"]
+      test: ["CMD-SHELL", "pg_isready -U fabledscryer"]
       interval: 5s
       timeout: 5s
       retries: 5