Initial commit: Voice Assistant Gateway mit Konfig-/Routing-Fundament

- FastAPI-Gateway mit REST-Endpunkten (chat/speak/transcribe/devices/sessions/config)
- Geschichtete Konfiguration mit Profilen (local-dev/hybrid/cloud) via TOML + ENV
- Registry-Pattern + einheitliche Route-Aufloesung (Default->Profil->ENV->Session->Request)
- Device Router (strikt, Singleton) und Output-Lifecycle im Orchestrator
- OpenRouter-Adapter (STT multipart/LLM/TTS) + lokale Provider-Stubs
- Regelbasierte Pipeline (Cleaner/Spoken-Adapter/TTS-Normalizer)
- 22 automatisierte Tests; Doku: README, BEDIENUNGSANLEITUNG, Architektur
- Secrets ausschliesslich ueber Umgebung; .env und lokale config gitignored

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

pyproject.toml

@@ -0,0 +1,28 @@
+[project]
+name = "voice-assistant-gateway"
+version = "0.1.0"
+description = "Modular voice assistant gateway with pluggable audio endpoints and provider adapters"
+readme = "README.md"
+requires-python = ">=3.11"
+dependencies = [
+  "fastapi>=0.116.0",
+  "uvicorn[standard]>=0.35.0",
+  "httpx>=0.28.0",
+  "pydantic>=2.11.0",
+  "pydantic-settings>=2.10.0",
+  "python-multipart>=0.0.20"
+]
+
+[project.optional-dependencies]
+test = [
+  "pytest>=8.0"
+]
+
+[build-system]
+requires = ["setuptools>=68", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools.packages.find]
+where = ["."]
+include = ["app*"]
+exclude = ["deploy*", "tests*"]