DOC: Create documentation for architecture

docs/architecture.md

+# Project architecture overview
+
+## Project Structure
+
+```
+src
+└── app
+    ├── __init__.py
+    ├── api
+    │   ├── __init__.py
+    │   └── v1
+    │       ├── __init__.py
+    │       ├── api.py
+    │       └── endpoints
+    │           ├── __init__.py
+    │           └── webhook.py
+    ├── components
+    │   ├── __init__.py
+    |   └── component # Each component has its own directory
+    │       ├── __init__.py
+    │       ├── handler.py
+    │       └── schema.py
+    ├── core
+    │   ├── __init__.py
+    │   ├── base_webhook_event_schema.py
+    │   ├── config.py
+    │   └── dependencies.py
+    ├── main.py
+    └── utils
+        ├── __init__.py
+        ├── load_submodules.py
+        └── logger.py
+```
+
+## Project Overview
+
+This project is a FastAPI-based API server with a structured directory layout. It provides various endpoints for handling webhooks and sensor data related to Zoom rooms.
+
+The project is organized into the following main directories:
+
+### 1. `api`
+
+The `api` directory serves as the core of the api routes of the application and contains the API routers.
+
+- `api`: Contains the API routers for different API versions.
+- `api/v1`: Contains the API endpoints for version 1 of the API.
+
+### 2. `components`
+
+The `components` directory holds reusable components that are used by the API endpoints. Each component has its own handler and schema files.
+
+- `endpoint_url_validation`: Contains the components for validating endpoint URLs.
+- `zoom_room_checked_in`: Contains the components for handling checked-in Zoom room events.
+- `zoom_room_checked_out`: Contains the components for handling checked-out Zoom room events.
+- `zoom_room_sensor_data`: Contains the components for handling sensor data from Zoom rooms.
+
+### 3. `core`
+
+The `core` directory houses core functionalities and configurations of the application.
+
+- `base_webhook_event_schema.py`: Defines the base schema for webhook events.
+- `config.py`: Contains application configurations.
+- `dependencies.py`: Contains dependencies required by the API endpoints.
+
+### 4. `utils`
+
+The `utils` directory contains utility files used throughout the application.
+
+- `load_submodules.py`: A utility to load submodules dynamically.
+- `logger.py`: Contains the logger configuration.
+
+### 5. `main.py`
+
+The `main.py` file is the entry point of the FastAPI application. It sets up the FastAPI app and includes the API routers from the `app` directory.
+
+## Project Functionality
+
+The project was developed to provide an API server for handling webhooks related to Zoom.
+The way it has been implemented is that the API server receives the webhook events from Zoom and then processes them accordingly, using the components in the `components` directory.
+All the `components` are loaded dynamically using the `load_submodules.py` utility.