[P0][CLI] ImportError: cannot import name 'genai' from 'google'

## Description
When running `agentcore dev --logs --agent StrandsPartial`, an error appears in the logs:
```
ImportError: cannot import name 'genai' from 'google' (unknown location)
```

## Category
Functional Bug

## Flow
Flow 2: Strands Multi-Agent Partial Memory

## Test Path
CLI

## Priority
P0

## Reporter
aidandal