feat: serve landing page via Jinja2 with module grid

app/main.py

@@ -1,4 +1,7 @@
-from fastapi import FastAPI, WebSocket
+from fastapi import FastAPI, Request, WebSocket
+from fastapi.responses import HTMLResponse
+from fastapi.staticfiles import StaticFiles
+from fastapi.templating import Jinja2Templates
 
 from app.core.config import get_settings
 
@@ -9,14 +12,71 @@ app = FastAPI(
     root_path=settings.APP_PREFIX,
 )
 
+app.mount("/static", StaticFiles(directory="app/static"), name="static")
+templates = Jinja2Templates(directory="app/templates")
 
-@app.get("/")
+MODULES = [
-async def root():
+    {
-    return {"status": "ok", "env": settings.APP_ENV}
+        "icon": "📡",
+        "name": "RSS-Feed Server",
+        "description": "Aggregiert und verteilt Neuigkeiten der Fakultät als standardkonformen RSS 2.0 Feed.",
+        "status": "active",
+    },
+    {
+        "icon": "📅",
+        "name": "Kalender",
+        "description": "Veranstaltungen, Prüfungstermine und Fristen im iCal-Format.",
+        "status": "planned",
+    },
+    {
+        "icon": "🔔",
+        "name": "Benachrichtigungen",
+        "description": "Push-Nachrichten und WebSocket-basierte Echtzeit-Alerts für Studierende.",
+        "status": "planned",
+    },
+    {
+        "icon": "📊",
+        "name": "Auslastung",
+        "description": "Raum- und Ressourcenauslastung der Fakultät in Echtzeit.",
+        "status": "planned",
+    },
+    {
+        "icon": "📚",
+        "name": "Lehrveranstaltungen",
+        "description": "Stundenplan-API und Kursinformationen aus dem Campus-System.",
+        "status": "planned",
+    },
+]
+
+NAV_ITEMS = [
+    {"label": "Übersicht", "url": "/", "active": True},
+    {"label": "RSS-Feeds", "url": "/rss", "active": False},
+    {"label": "Kalender", "url": "/kalender", "active": False},
+    {"label": "Docs", "url": "/docs", "active": False},
+]
+
+
+def _db_mode() -> str:
+    url = settings.DATABASE_URL
+    return "SQLite (dev)" if url.startswith("sqlite") else "MariaDB (prod)"
+
+
+@app.get("/", response_class=HTMLResponse)
+async def root(request: Request):
+    return templates.TemplateResponse(
+        request,
+        "index.html",
+        {
+            "nav_items": NAV_ITEMS,
+            "modules": MODULES,
+            "db_mode": _db_mode(),
+            "app_version": "0.1.0",
+        },
+    )
 
 
 @app.websocket("/ws/hello/{name}")
 async def websocket_hello(websocket: WebSocket, name: str):
     await websocket.accept()
     await websocket.send_text(f"Hello, {name}!")
-    await websocket.close()
+    await websocket.close()

tests/test_landing.py

@@ -0,0 +1,31 @@
+from fastapi.testclient import TestClient
+from app.main import app
+
+client = TestClient(app)
+
+
+def test_landing_returns_html():
+    response = client.get("/")
+    assert response.status_code == 200
+    assert "text/html" in response.headers["content-type"]
+
+
+def test_landing_contains_title():
+    response = client.get("/")
+    assert "University Process Hub" in response.text
+
+
+def test_landing_contains_rss_module():
+    response = client.get("/")
+    assert "RSS-Feed Server" in response.text
+
+
+def test_landing_navbar_links_present():
+    response = client.get("/")
+    assert "Übersicht" in response.text
+    assert "RSS-Feeds" in response.text
+
+
+def test_landing_info_strip_shows_db_mode():
+    response = client.get("/")
+    assert "SQLite" in response.text or "MariaDB" in response.text