Add RoboCare AI Assistant project files including database, README, and Jupyter notebook for caregiver matching using AI. This project addresses real-world challenges in caregiver matching through natural language processing and intelligent search capabilities.

week2/community-contributions/hopeogbons/README.md

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+# 🏥 RoboCare AI Assistant
+
+> Born from a real problem at MyWoosah Inc—now solving caregiver matching through AI.
+
+## 📋 The Story Behind This Project
+
+While working on a caregiver matching platform for **MyWoosah Inc** in the US, I faced a real challenge: how do you efficiently match families with the right caregivers when everyone has different needs?
+
+Families would ask things like:
+
+- _"I need someone for my mom on Monday mornings who speaks Spanish"_
+- _"Can you find elder care in Boston under $30/hour with CPR certification?"_
+
+Writing individual SQL queries for every combination of filters was exhausting and error-prone. I knew there had to be a better way.
+
+That's when I discovered the **Andela LLM Engineering program**. I saw an opportunity to transform this problem into a solution using AI. Instead of rigid queries, what if families could just... talk? And the AI would understand, search, and recommend?
+
+This project is my answer. It's not just an exercise—it's solving a real problem I encountered in the field.
+
+## What It Does
+
+RoboCare helps families find caregivers through natural conversation:
+
+- 🔍 Searches the database intelligently
+- 🎯 Finds the best matches
+- 💬 Explains pros/cons in plain English
+- 🔊 Speaks the results back to you
+
+## ✨ Features
+
+### 🤖 AI-Powered Matching
+
+- Natural language conversation interface
+- Intelligent requirement gathering
+- Multi-criteria search optimization
+- Personalized recommendations with pros/cons analysis
+
+### 🔍 Advanced Search Capabilities
+
+- **Location-based filtering**: City, state, and country
+- **Service type matching**: Elder care, child care, companionship, dementia care, hospice support, and more
+- **Availability scheduling**: Day and time-based matching
+- **Budget optimization**: Maximum hourly rate filtering
+- **Language preferences**: Multi-language support
+- **Certification requirements**: CPR, CNA, BLS, and specialized certifications
+- **Experience filtering**: Minimum years of experience
+
+### 🎙️ Multi-Modal Interface
+
+- Text-based chat interface
+- Voice response generation (Text-to-Speech)
+- Multiple voice options (coral, alloy, echo, fable, onyx, nova, shimmer)
+- Clean, modern UI built with Gradio
+
+### 🛡️ Defensive Architecture
+
+- Comprehensive error handling
+- Token overflow protection
+- Tool call validation
+- Graceful degradation
+
+## 🚀 Getting Started
+
+### Prerequisites
+
+- Python 3.8+
+- OpenAI API key
+- Virtual environment (recommended)
+
+### Installation
+
+1. **Clone the repository**
+
+   ```bash
+   cd week2
+   ```
+
+2. **Create and activate virtual environment**
+
+   ```bash
+   python -m venv .venv
+   source .venv/bin/activate  # On Windows: .venv\Scripts\activate
+   ```
+
+3. **Install dependencies**
+
+   ```bash
+   pip install -r requirements.txt
+   ```
+
+4. **Set up environment variables**
+
+   Create a `.env` file in the project root:
+
+   ```env
+   OPENAI_API_KEY=your_openai_api_key_here
+   ```
+
+5. **Run the application**
+
+   ```bash
+   jupyter notebook "week2 EXERCISE.ipynb"
+   ```
+
+   Or run all cells sequentially in your Jupyter environment.
+
+## 📊 Database Schema
+
+### Tables
+
+#### `caregivers`
+
+Primary caregiver information including:
+
+- Personal details (name, gender)
+- Experience level
+- Hourly rate and currency
+- Location (city, state, country, coordinates)
+- Live-in availability
+
+#### `caregiver_services`
+
+Care types offered by each caregiver:
+
+- Elder care
+- Child care
+- Companionship
+- Post-op support
+- Special needs
+- Respite care
+- Dementia care
+- Hospice support
+
+#### `availability`
+
+Time slots when caregivers are available:
+
+- Day of week (Mon-Sun)
+- Start and end times (24-hour format)
+
+#### `languages`
+
+Languages spoken by caregivers
+
+#### `certifications`
+
+Professional certifications (CPR, CNA, BLS, etc.)
+
+#### `traits`
+
+Personality and professional traits
+
+## 🔧 Architecture
+
+### Tool Registry Pattern
+
+```python
+TOOL_REGISTRY = {
+    "search_caregivers": search_caregivers,
+    "get_caregiver_profile": get_caregiver_profile,
+    # ... more tools
+}
+```
+
+All database functions are registered and can be called by the AI dynamically.
+
+### Search Functions
+
+#### `search_caregivers()`
+
+Multi-filter search with parameters:
+
+- `city`, `state_province`, `country` - Location filters
+- `care_type` - Type of care needed
+- `min_experience` - Minimum years of experience
+- `max_hourly_rate` - Budget constraint
+- `live_in` - Live-in caregiver requirement
+- `language` - Language preference
+- `certification` - Required certification
+- `day` - Day of week availability
+- `time_between` - Time window availability
+- `limit`, `offset` - Pagination
+
+#### `get_caregiver_profile(caregiver_id)`
+
+Returns complete profile including:
+
+- Basic information
+- Services offered
+- Languages spoken
+- Certifications
+- Personality traits
+- Availability schedule
+
+## 🎨 UI Components
+
+### Main Interface
+
+- **Chat History**: Message-based conversation display
+- **Voice Response**: Auto-playing audio output
+- **Settings Sidebar**:
+  - AI Model selector
+  - Voice selection
+  - Audio toggle
+  - Clear conversation button
+
+### User Experience
+
+- Professional gradient header
+- Collapsible instructions
+- Helpful placeholder text
+- Custom CSS styling
+- Responsive layout
+
+## 📝 Usage Examples
+
+### Example 1: Basic Search
+
+```python
+results = search_caregivers(
+    city="New York",
+    care_type="elder care",
+    max_hourly_rate=30.0,
+    limit=5
+)
+```
+
+### Example 2: Language Filter
+
+```python
+results = search_caregivers(
+    care_type="child care",
+    language="Spanish",
+    limit=3
+)
+```
+
+### Example 3: Availability Search
+
+```python
+results = search_caregivers(
+    day="Mon",
+    time_between=("09:00", "17:00"),
+    city="Boston"
+)
+```
+
+### Example 4: Get Full Profile
+
+```python
+profile = get_caregiver_profile(caregiver_id=1)
+print(profile['services'])
+print(profile['availability'])
+```
+
+## 🔐 Security & Best Practices
+
+### Current Implementation
+
+- ✅ Environment variable management for API keys
+- ✅ SQL injection prevention (parameterized queries)
+- ✅ Error handling and graceful degradation
+- ✅ Input validation through tool schemas
+
+### Important Disclaimers
+
+⚠️ **This is a demonstration application**
+
+- Credentials and background checks are NOT verified
+- Families should independently verify all caregiver information
+- Not intended for production use without additional security measures
+
+## 🛠️ Tech Stack
+
+- **AI/ML**: OpenAI GPT-4o-mini, Text-to-Speech API
+- **Database**: SQLite with normalized schema
+- **UI Framework**: Gradio
+- **Language**: Python 3.8+
+- **Key Libraries**:
+  - `openai` - OpenAI API client
+  - `gradio` - Web interface
+  - `python-dotenv` - Environment management
+  - `sqlite3` - Database operations
+
+## 📈 What's Next
+
+### Immediate Plans
+
+- [ ] Add speech input (families could call and talk)
+- [ ] Connect to actual MyWoosah database
+- [ ] Background check API integration
+- [ ] Deploy for real users
+
+### Future Enhancements
+
+- [ ] Streaming responses for real-time interaction
+- [ ] Dynamic model switching
+- [ ] User authentication and profiles
+- [ ] Review and rating system
+- [ ] Payment integration
+- [ ] Calendar integration for scheduling
+
+## 💡 Key Learnings
+
+Through building this project, I learned:
+
+1. **Prompt engineering is critical** - Small keyword mismatches = zero results. Mapping "Monday" → "Mon" matters.
+2. **Function calling is powerful** - Eliminated the need for custom queries. The AI figures it out.
+3. **Defensive programming saves headaches** - Things break. This code expects it and handles it elegantly.
+4. **AI makes databases accessible** - Good database design + AI = natural language interface
+
+## 🌍 The Bigger Picture
+
+This isn't just about caregiving. The same pattern works for:
+
+- Healthcare appointment booking
+- Legal service matching
+- Tutoring and education platforms
+- Real estate agent matching
+- Any matching problem where natural language beats forms
+
+**AI doesn't replace good database design—it makes it accessible to everyone.**
+
+---
+
+## 🤝 Contributing
+
+This project was created as part of the **Andela LLM Engineering Week 2 Exercise**.
+
+Feedback and contributions are welcome! Feel free to:
+
+1. Fork the repository
+2. Create a feature branch
+3. Make your changes
+4. Run all cells to test
+5. Submit a pull request
+
+## 🙏 Acknowledgments
+
+- **MyWoosah Inc** - For the real-world problem that inspired this solution
+- **Andela LLM Engineering Program** - Educational framework and guidance
+- **OpenAI** - GPT-4o and TTS API
+- **Gradio** - Making beautiful UIs accessible
+
+---
+
+<div align="center">
+  
+**For MyWoosah Inc and beyond:** This is proof that AI can transform how we connect people with the care they need.
+
+_Built with ❤️ during Week 2 of the Andela LLM Engineering Program_
+
+**RoboOffice Ltd**
+
+</div>