fix+docs: Bug-Fixes, vollstaendige Dokumentation v8

Bug-Fixes:
- hermes_agent.py: asyncio.get_event_loop() → get_running_loop() (Python 3.10+)
- routers/hermes.py: Thread-Lock fuer Whisper-Init, HERMES_WINDOWS_USER Import,
  Piper stderr logging, __import__ Anti-Pattern entfernt
- routers/memory.py: SQLite WAL-Mode, Kategorie-Enum-Validierung (user/instruction/stable/versioned/ephemeral)
- HermesPanel.svelte: findLast() → reverse().find() (Browser-Kompatibilitaet)
- ConnectPanel.svelte: Hardcoded Username durch Platzhalter ersetzt

Docs:
- CLAUDE.md: komplett aktualisiert (v7+v8, Hermes, Memory, alle Env-Vars)
- ROADMAP.md: v7+v8 als erledigt, naechste Features (v8.1-v9.1)
- README.md: komplett neu geschrieben (Agentic OS Konzept, alle Features)

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

hermes_agent.py

@@ -375,7 +375,7 @@ async def run_agent(message: str, send: SendFn) -> None:
         await send({"type": "thinking"})
 
         try:
-            result = await asyncio.get_event_loop().run_in_executor(
+            result = await asyncio.get_running_loop().run_in_executor(
                 None, lambda: _call_llm(model, messages)
             )
         except Exception as exc:
@@ -411,7 +411,7 @@ async def run_agent(message: str, send: SendFn) -> None:
 
             await send({"type": "tool_call", "name": name, "args": args})
 
-            tool_out = await asyncio.get_event_loop().run_in_executor(
+            tool_out = await asyncio.get_running_loop().run_in_executor(
                 None, lambda n=name, a=args: execute_tool(n, a)
             )