feat(transcription): add meeting assistant micro-service v0.1.0

- Added FastAPI backend with FFmpeg and Gemini 2.0 integration
- Added React frontend with upload and meeting list
- Integrated into main docker-compose stack and dashboard

transcription-tool/Dockerfile

@@ -0,0 +1,37 @@
+# --- STAGE 1: Build Frontend ---
+FROM node:20-slim AS frontend-builder
+WORKDIR /build
+COPY frontend/package*.json ./
+RUN npm install
+COPY frontend/ ./
+RUN npm run build
+
+# --- STAGE 2: Backend & Runtime ---
+FROM python:3.11-slim
+WORKDIR /app
+
+# System Dependencies (FFmpeg ist essenziell)
+RUN apt-get update && apt-get install -y \
+    ffmpeg \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy Requirements & Install
+COPY backend/requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy Built Frontend from Stage 1
+COPY --from=frontend-builder /build/dist /frontend_static
+
+# Copy Backend Source
+COPY backend ./backend
+
+# Environment Variables
+ENV PYTHONPATH=/app
+ENV PYTHONUNBUFFERED=1
+
+# Expose Port
+EXPOSE 8001
+
+# Start FastAPI
+CMD ["uvicorn", "backend.app:app", "--host", "0.0.0.0", "--port", "8001", "--reload"]