Add mem0 as a service integration

examples/personalized-voice-agent/server/README.md

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+# Personalized Voice Agent Server
+
+A FastAPI server that manages bot instances and provides endpoints for both Daily Prebuilt and Pipecat client connections.
+
+## Environment Variables
+
+Copy `env.example` to `.env` and configure:
+
+```ini
+# Required API Keys
+DAILY_API_KEY=           # Your Daily API key
+MEM0_API_KEY=            # Your Mem0 API key
+OPENAI_API_KEY=          # Your OpenAI API key (required for OpenAI bot)
+ELEVENLABS_API_KEY=      # Your ElevenLabs API key
+
+# Optional Configuration
+DAILY_API_URL=           # Optional: Daily API URL (defaults to https://api.daily.co/v1)
+DAILY_SAMPLE_ROOM_URL=   # Optional: Fixed room URL for development
+HOST=                    # Optional: Host address (defaults to 0.0.0.0)
+FAST_API_PORT=           # Optional: Port number (defaults to 7860)
+```
+
+## Available Bots
+
+The server supports two bot implementations:
+
+1. **OpenAI Bot** (Default)
+
+   - Uses GPT-4 for conversation
+   - Requires OPENAI_API_KEY
+
+## Running the Server
+
+Set up and activate your virtual environment:
+
+```bash
+python3 -m venv venv
+source venv/bin/activate  # On Windows: venv\Scripts\activate
+```
+
+Install dependencies:
+
+```bash
+pip install -r requirements.txt
+```
+
+If you want to use the local version of `pipecat` in this repo rather than the last published version, also run:
+
+```bash
+pip install --editable "../../../[daily,elevenlabs,openai,silero,mem0ai]"
+```
+
+Run the server:
+
+```bash
+python server.py
+```