* Add multi-region support for SRE-Agent
- Add AWS region configuration parameter to agent_config.yaml
- Update gateway main.py to validate region matches endpoint URL
- Modify SRE agent to read region from config and pass through function chain
- Update memory client and LLM creation to use configurable region
- Fixes hardcoded us-east-1 region dependencies
Closes#245
* Move architecture file to docs/ and improve setup instructions
- Move sre_agent_architecture.md to docs/ folder for better organization
- Update graph export code to generate architecture file in docs/ folder
- Add automatic docs directory creation if it doesn't exist
- Improve README setup instructions:
- Fix .env.example copy path to use sre_agent folder
- Add note that Amazon Bedrock users don't need to modify .env
- Add START_API_BACKEND variable to conditionally start backend servers
- Useful for workshop environments where backends are already running
* Improve gateway configuration documentation and setup instructions
- Update config.yaml.example to use REGION placeholder instead of hardcoded us-east-1
- Add gateway configuration step to README setup instructions
- Document .cognito_config file in auth.md automated setup section
- Remove duplicate credential_provider_name from config.yaml.example
- Update configuration.md to include .cognito_config in files overview
- Add clear instructions to copy and edit gateway/config.yaml before creating gateway
* Improve IAM role guidance and region handling
- Add clear guidance about IAM role options in gateway/config.yaml.example
- Explain that testing can use current EC2/notebook role
- Recommend dedicated role for production deployments
- Add aws sts get-caller-identity command to help users find their role
- Update deployment scripts to use AWS_REGION env var as fallback
- Scripts now follow: CLI arg -> AWS_REGION env var -> us-east-1 default
* Remove unnecessary individual Cognito ID files
- Remove creation of .cognito_user_pool_id file
- Remove creation of .cognito_client_id file
- Keep only .cognito_config as the single source of truth
- Simplifies configuration management
* Implement region fallback logic for SRE Agent
- Added region fallback chain: agent_config.yaml -> AWS_REGION env -> us-east-1
- Modified agent_config.yaml to comment out region parameter to enable fallback
- Updated multi_agent_langgraph.py with comprehensive fallback implementation
- Added logging to show which region source is being used
- Ensures flexible region configuration without breaking existing deployments
- Maintains backward compatibility while adding multi-region support
