feat: Add PostgreSQL and Redis client support

- Add PostgreSQL client functionality for database interactions.
- Add Redis client functionality for cache and data store operations.
- Extend Rhai scripting with PostgreSQL and Redis client modules.
- Add documentation and test cases for both clients.

docs/rhai/redisclient_module_tests.md

@@ -2,6 +2,16 @@
 
 This document describes the test scripts for the Redis client module in the SAL library. These tests verify the functionality of the Redis client module's connection management and Redis operations.
 
+## Redis Client Features
+
+The Redis client module provides the following features:
+
+1. **Basic Redis Operations**: SET, GET, DEL, etc.
+2. **Hash Operations**: HSET, HGET, HGETALL, HDEL
+3. **List Operations**: RPUSH, LPUSH, LLEN, LRANGE
+4. **Connection Management**: Automatic connection handling and reconnection
+5. **Builder Pattern for Configuration**: Flexible configuration with authentication support
+
 ## Test Structure
 
 The tests are organized into two main scripts:
@@ -75,6 +85,24 @@ These tests require a Redis server to be running and accessible. The tests will
 
 If no Redis server is available, the tests will be skipped rather than failing.
 
+## Authentication Support
+
+The Redis client module will support authentication using the builder pattern in a future update.
+
+The backend implementation is ready, but the Rhai bindings are still in development.
+
+When implemented, the builder pattern will support the following configuration options:
+
+- Host: Set the Redis host
+- Port: Set the Redis port
+- Database: Set the Redis database number
+- Username: Set the Redis username (Redis 6.0+)
+- Password: Set the Redis password
+- TLS: Enable/disable TLS
+- Unix socket: Enable/disable Unix socket
+- Socket path: Set the Unix socket path
+- Connection timeout: Set the connection timeout in seconds
+
 ## Adding New Tests
 
 To add a new test: