chore: merge from aics

[NingLu]

Fixes #

🤖 AI-Generated PR Description (Powered by Amazon Bedrock)

Description

This pull request introduces modifications to the chat infrastructure and language model integration components of the project. The changes aim to enhance the functionality and improve the overall performance of the chat system.

The config.ts file in the source/infrastructure/bin directory has been updated to reflect the latest configuration settings for the chat infrastructure.

The chat-stack.ts file in the source/infrastructure/lib/chat directory has been modified to incorporate improvements to the chat stack management and deployment process.

The types.ts file in the source/infrastructure/lib/shared directory has been updated to include new type definitions and interfaces required for the chat system enhancements.

Additionally, the bedrock_models.py file in the source/lambda/online/common_logic/langchain_integration/chat_models directory has been modified to integrate new language models and optimize their performance within the chat system.

These changes do not introduce any breaking changes or require additional dependencies.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

File Stats Summary

File number involved in this PR: 4, unfold to see the details:

The file changes summary is as follows:

Files	Changes	Change Summary
source/infrastructure/lib/chat/chat-stack.ts	2 added, 0 removed	The code changes add environment variables for Bedrock AWS access key ID and secret access key to the Lambda function.
source/infrastructure/lib/shared/types.ts	2 added, 0 removed	The code changes add optional properties 'bedrockAk' and 'bedrockSk' to the 'chat' object in the SystemConfig interface.
source/infrastructure/bin/config.ts	2 added, 0 removed	The code changes add two new configuration properties, bedrockAk and bedrockSk, for the chat feature, likely related to authentication or access keys.
source/lambda/online/common_logic/langchain_integration/chat_models/bedrock_models.py	27 added, 8 removed	This code change adds the ability to use AWS access key and secret access key from environment variables to initialize the ChatBedrockConverse model, instead of relying solely on the credentials profile name.