Explain CloudWatch Agent RPM bXXXX release suffix vs -1.amzn20xx (AL2/AL2023) - CVE-2025-61731 / CVE-2025-68119

## Summary
We install `amazon-cloudwatch-agent` from the official Amazon Linux repos (AL2 and AL2023). As a result, on AL2023 we have `amazon-cloudwatch-agent-1.300064.1b1344-1.x86_64` installed.

For **CVE-2025-61731** and **CVE-2025-68119**, we found guidance that mentions a fixed version like `1.300064.1-1.amzn2023`. Because our installed RPM uses a different release string (`b1344-1`), we cannot tell if we are patched.

## Questions
1. Does `amazon-cloudwatch-agent-1.300064.1b1344-1.x86_64` include fixes for **CVE-2025-61731** and **CVE-2025-68119**?
2. What does the **bXXXX** suffix mean in Amazon Linux RPM versions (example: `1.300064.1b1344-1`)?
3. How should we map/compare `1.300064.1b1344-1` to `1.300064.1-1.amzn2023` for patch/compliance checks? Any official reference is appreciated.

## Environment
- Amazon Linux 2023.10.20260302 (also seen on AL2)
- Installed via `dnf` from official repos

## Evidence (AL2023)
```sh
$ rpm -q amazon-cloudwatch-agent
amazon-cloudwatch-agent-1.300064.1b1344-1.x86_64
```

```sh
$ dnf list --showduplicates amazon-cloudwatch-agent
Installed Packages
amazon-cloudwatch-agent.x86_64 1.300064.1b1344-1 @System

Available Packages
amazon-cloudwatch-agent.x86_64 1.300064.1-1.amzn2023 amazonlinux
```

## Notes
AWS-Case: 177323389600039

Start by reviewing the amazon-cloudwatch-agent package metadata shown by rpm and dnf for AL2 and AL2023, then check the official Amazon Linux references for CVE-2025-61731 and CVE-2025-68119. Document what the b1344 release suffix means and how it compares with 1.300064.1-1.amzn2023. Done means the two installed versions can be mapped confidently for patch and compliance checks.

Written by the indexing model from the issue text.