feat(windkarte): add per-area geo export + dynamic favicon

- /api/vorranggebiete.geojson + .kml endpoints (filter via ?id=W-XX)
- Download-Buttons in WindAreaPanel pro selektiertes Gebiet
- Hover-Tooltip auf Polygon zeigt Fläche, geplante Anlagen, Höhe, Gemeinden
- Favicon + apple-touch-icon dynamisch aus data.logoUrl (CMS-Logo)
- alte windrad-PNGs in static/favicons/ entfernt
- WindkarteBlock list-fetch: _limit statt limit (RustyCMS-Param)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

static/favicons/browserconfig.xml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<browserconfig>
-  <msapplication>
-    <tile>
-      <square70x70logo src="/favicons/ms-icon-70x70.png" />
-      <square150x150logo src="/favicons/ms-icon-150x150.png" />
-      <square310x310logo src="/favicons/ms-icon-310x310.png" />
-      <TileColor>#ffffff</TileColor>
-    </tile>
-  </msapplication>
-</browserconfig>

static/favicons/manifest.json

@@ -1,46 +0,0 @@
-{
-  "name": "Windwiderstand",
-  "short_name": "Windwiderstand",
-  "start_url": "/",
-  "display": "browser",
-  "background_color": "#ffffff",
-  "theme_color": "#ffffff",
-  "icons": [
-    {
-      "src": "/favicons/android-icon-36x36.png",
-      "sizes": "36x36",
-      "type": "image/png",
-      "density": "0.75"
-    },
-    {
-      "src": "/favicons/android-icon-48x48.png",
-      "sizes": "48x48",
-      "type": "image/png",
-      "density": "1.0"
-    },
-    {
-      "src": "/favicons/android-icon-72x72.png",
-      "sizes": "72x72",
-      "type": "image/png",
-      "density": "1.5"
-    },
-    {
-      "src": "/favicons/android-icon-96x96.png",
-      "sizes": "96x96",
-      "type": "image/png",
-      "density": "2.0"
-    },
-    {
-      "src": "/favicons/android-icon-144x144.png",
-      "sizes": "144x144",
-      "type": "image/png",
-      "density": "3.0"
-    },
-    {
-      "src": "/favicons/android-icon-192x192.png",
-      "sizes": "192x192",
-      "type": "image/png",
-      "density": "4.0"
-    }
-  ]
-}

static/safari-pinned-tab.svg

@@ -1,10 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32" fill="none">
-  <path
-    d="M6 8l4 16 4-10 4 10 4-16"
-    stroke="currentColor"
-    stroke-width="2.5"
-    stroke-linecap="round"
-    stroke-linejoin="round"
-    fill="none"
-  />
-</svg>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32"><path d="M6 8l4 16 4-10 4 10 4-16" stroke="#000" stroke-width="2.5" fill="none"/></svg>