refactor: complete rewrite as React+FastAPI dashboard

Replace monolithic Jinja2 template with modern stack:

Backend (FastAPI):
- Modular router/service architecture
- Async PostgreSQL (asyncpg) for news from n8n pipeline
- Live Unraid server stats (2 servers via API)
- Home Assistant, Vikunja tasks, weather (wttr.in)
- WebSocket broadcast for real-time updates (15s)
- TTL cache per endpoint, all config via ENV vars

Frontend (React + Vite + TypeScript):
- Glassmorphism dark theme with Tailwind CSS
- Responsive grid: mobile/tablet/desktop/ultrawide
- Weather cards, hourly forecast, news with category tabs
- Server stats (CPU ring, RAM bar, Docker list)
- Home Assistant controls, task management
- Live clock, WebSocket connection indicator

Infrastructure:
- Multi-stage Dockerfile (node:22-alpine + python:3.11-slim)
- docker-compose with full ENV configuration
- Kaniko CI/CD pipeline for GitLab registry

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

server/routers/servers.py

@@ -0,0 +1,64 @@
+"""Unraid servers status router."""
+
+from __future__ import annotations
+
+import logging
+from typing import Any, Dict, List
+
+from fastapi import APIRouter
+
+from server.cache import cache
+from server.config import settings
+from server.services.unraid_service import ServerConfig, fetch_all_servers
+
+logger = logging.getLogger(__name__)
+
+router = APIRouter(prefix="/api", tags=["servers"])
+
+CACHE_KEY = "servers"
+
+
+@router.get("/servers")
+async def get_servers() -> Dict[str, Any]:
+    """Return status information for all configured Unraid servers.
+
+    Response shape::
+
+        {
+            "servers": [ ... server dicts ... ]
+        }
+    """
+
+    # --- cache hit? -----------------------------------------------------------
+    cached = await cache.get(CACHE_KEY)
+    if cached is not None:
+        return cached
+
+    # --- cache miss -----------------------------------------------------------
+    server_configs: List[ServerConfig] = [
+        ServerConfig(
+            name=srv.name,
+            host=srv.host,
+            api_key=srv.api_key,
+            port=srv.port,
+        )
+        for srv in settings.unraid_servers
+    ]
+
+    servers_data: List[Dict[str, Any]] = []
+    try:
+        servers_data = await fetch_all_servers(server_configs)
+    except Exception as exc:
+        logger.exception("Failed to fetch Unraid server data")
+        return {
+            "servers": [],
+            "error": True,
+            "message": str(exc),
+        }
+
+    payload: Dict[str, Any] = {
+        "servers": servers_data,
+    }
+
+    await cache.set(CACHE_KEY, payload, settings.unraid_cache_ttl)
+    return payload