Add agentcore import command for existing resources

[tejaskash]

Description

There is no way to bring existing AgentCore resources (memory, identity, runtimes) that were created outside the CLI into a CLI-managed project. Users who set up resources via the console or SDK cannot manage them through the CLI.

Category

Feature Request

Acceptance Criteria

• Add an agentcore import command (or similar)
• Support importing existing memory configurations
• Support importing existing identity/credentials
• Support importing existing runtime agents
• Imported resources are written to the project config and can be managed by the CLI going forward
• Validate that imported resources exist and are accessible before adding them to the project