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>

tests/test_auth.py

@@ -1,7 +1,7 @@
 import pytest
 import bcrypt
 from unittest.mock import AsyncMock, patch
-from fablednetmon.models.users import User, UserRole
+from fabledscryer.models.users import User, UserRole
 
 
 def make_user(role=UserRole.admin):
@@ -23,7 +23,7 @@ async def test_login_page_returns_200(client):
 
 @pytest.mark.asyncio
 async def test_login_redirects_to_setup_when_no_users(client, app):
-    with patch("fablednetmon.auth.routes.get_user_count", new=AsyncMock(return_value=0)):
+    with patch("fabledscryer.auth.routes.get_user_count", new=AsyncMock(return_value=0)):
         response = await client.get("/login")
     assert response.status_code == 302
     assert "/setup" in response.headers["Location"]
@@ -32,8 +32,8 @@ async def test_login_redirects_to_setup_when_no_users(client, app):
 @pytest.mark.asyncio
 async def test_login_success_redirects_to_dashboard(client, app):
     user = make_user()
-    with patch("fablednetmon.auth.routes.get_user_count", new=AsyncMock(return_value=1)), \
-         patch("fablednetmon.auth.routes.get_user_by_username", new=AsyncMock(return_value=user)):
+    with patch("fabledscryer.auth.routes.get_user_count", new=AsyncMock(return_value=1)), \
+         patch("fabledscryer.auth.routes.get_user_by_username", new=AsyncMock(return_value=user)):
         response = await client.post("/login", form={"username": "admin", "password": "password"})
     assert response.status_code == 302
     assert "/" in response.headers["Location"]
@@ -42,8 +42,8 @@ async def test_login_success_redirects_to_dashboard(client, app):
 @pytest.mark.asyncio
 async def test_login_failure_returns_400(client, app):
     user = make_user()
-    with patch("fablednetmon.auth.routes.get_user_count", new=AsyncMock(return_value=1)), \
-         patch("fablednetmon.auth.routes.get_user_by_username", new=AsyncMock(return_value=user)):
+    with patch("fabledscryer.auth.routes.get_user_count", new=AsyncMock(return_value=1)), \
+         patch("fabledscryer.auth.routes.get_user_by_username", new=AsyncMock(return_value=user)):
         response = await client.post("/login", form={"username": "admin", "password": "wrong"})
     assert response.status_code == 400