feat(hermes): v8 — Hermes Agent mit Voice-Interface

Lokaler KI-Assistent auf dem Bosgame: Text + Sprache, Tool Calling,
WebSocket-Streaming. Steuerzentrale des Agentic OS.

- hermes_agent.py: ReAct-Agent mit Tool-Set (read_file, list_dir,
  run_command, system_status, memory r/w, web_search)
- routers/hermes.py: WS /chat, POST /transcribe (Whisper),
  POST /tts (Piper), GET /status, GET /pubkey
- HermesPanel.svelte: Chat-UI mit Token-Streaming, Tool-Anzeige,
  Mikrofon-Button (MediaRecorder), Setup-Wizard (Windows SSH)
- Modell-Routing: scout fuer einfache Tasks, coder fuer komplexe
- HERMES_* Env-Vars in config.py

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

static/index.html

@@ -23,6 +23,7 @@
       <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>
       <a class="nav-item" data-view="memory"><span class="ni-ic" data-ic="database"></span><span class="ni-tx">Gedächtnis</span></a>
+      <a class="nav-item" data-view="hermes"><span class="ni-ic" data-ic="bolt"></span><span class="ni-tx">Hermes</span></a>
     </nav>
     <div class="side-foot">
       <span class="nav-item" id="nav-settings"><span class="ni-ic" data-ic="settings"></span><span class="ni-tx">Einstellungen</span></span>
@@ -50,6 +51,7 @@
       <section class="view" data-view="news" hidden></section>
       <section class="view" data-view="guides" hidden></section>
       <section class="view" data-view="memory" hidden></section>
+      <section class="view" data-view="hermes" hidden></section>
     </main>
   </div>
 </div>