v4 Schritt 4: News-Board

- routers/news.py: aggregiert kuratierte RSS/Atom-Feeds (HuggingFace, llama.cpp, Ollama,
  r/LocalLLaMA, Simon Willison) via httpx + stdlib xml.etree, In-memory-Cache 30 min,
  Hardware-relevante Beitraege (rocm/gfx1151/...) markiert. Degradiert pro Feed sauber.
- news.js: Beitragsliste (Quelle, Titel-Link, relatives Datum) + Aktualisieren.
- Nav 'News' + View + main.js.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

static/index.html

@@ -20,6 +20,7 @@
       <a class="nav-item" data-view="server"><span class="ni-ic" data-ic="server"></span><span class="ni-tx">Server</span></a>
       <a class="nav-item" data-view="cookbook"><span class="ni-ic" data-ic="book"></span><span class="ni-tx">Cookbook</span></a>
       <a class="nav-item" data-view="connect"><span class="ni-ic" data-ic="swap"></span><span class="ni-tx">Verbinden</span></a>
+      <a class="nav-item" data-view="news"><span class="ni-ic" data-ic="info"></span><span class="ni-tx">News</span></a>
       <a class="nav-item" data-view="guides"><span class="ni-ic" data-ic="help"></span><span class="ni-tx">Guides</span></a>
     </nav>
     <div class="side-foot">
@@ -77,6 +78,10 @@
         <!-- Wird von connect.js gerendert -->
       </section>
 
+      <section class="view" data-view="news" hidden>
+        <!-- Wird von news.js gerendert -->
+      </section>
+
       <section class="view" data-view="guides" hidden>
         <!-- Wird von guides.js gerendert -->
       </section>