init

Co-authored-by: Copilot <copilot@github.com>

.gitignore

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+# Python
+__pycache__/
+*.py[cod]
+*.pyo
+*.pyd
+.Python
+*.egg
+*.egg-info/
+dist/
+build/
+eggs/
+parts/
+var/
+sdist/
+wheels/
+pip-wheel-metadata/
+
+# Virtual environments
+.venv/
+venv/
+env/
+ENV/
+
+# Environment variables
+.env
+.env.*
+!.env.example
+
+# DuckDB data files
+data/*.db
+data/*.duckdb
+
+# pytest
+.pytest_cache/
+.coverage
+htmlcov/
+
+# IDE
+.vscode/
+.idea/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# instructions
+.github/instructions/

README.md

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+# AI
+
+A multi-modal AI web application. Users can choose between different AI models for text generation, text-to-image, text-to-video, and image-to-video generation, powered by [openrouter.ai](https://openrouter.ai).
+
+## Components
+
+| Component | Technology        | Description                                              |
+| --------- | ----------------- | -------------------------------------------------------- |
+| Backend   | FastAPI + uvicorn | REST API for auth, user management, and AI generation    |
+| Database  | DuckDB            | Lightweight embedded storage for users and session data  |
+| Frontend  | Flask + Jinja2    | Server-rendered UI served at <https://ai.allucanget.biz> |
+
+## Getting Started
+
+### Prerequisites
+
+- Python 3.11+
+- An [openrouter.ai](https://openrouter.ai) API key
+
+### Setup
+
+```bash
+# Clone the repo
+git clone <repo-url>
+cd 12-ai.allucanget.biz
+
+# Create and activate virtual environment
+python -m venv .venv
+# Windows
+.venv\Scripts\activate
+# Linux/macOS
+source .venv/bin/activate
+
+# Install dependencies
+pip install -r requirements.txt
+
+# Copy and fill in environment variables
+cp .env.example .env
+```
+
+### Running the backend
+
+```bash
+cd backend
+uvicorn app.main:app --reload --port 8000
+```
+
+### Running the frontend
+
+```bash
+cd frontend
+flask --app app.main run --port 5000
+```
+
+### Running tests
+
+```bash
+pytest
+```
+
+## Project Structure
+
+```
+backend/          FastAPI backend
+  app/
+    routers/      API route handlers
+    services/     Business logic
+    models/       Pydantic models
+  tests/
+frontend/         Flask frontend
+  app/
+    templates/    Jinja2 HTML templates
+    static/       CSS, JS, images
+  tests/
+data/             DuckDB database files (gitignored)
+docs/             Architecture documentation
+```
+
+## Documentation
+
+For the full architecture documentation see [docs/ARCHITECTURE.md](docs/ARCHITECTURE.md), which links to all 12 arc42 sections.