Feat: Fine-grained Security Scanning at Container Level

## What would you like to be added?
Implement container-level security scanning capabilities for more detailed security analysis.

## Why is this needed?
To enable more precise security vulnerability detection and assessment at the container level, helping users identify and address security issues with greater accuracy and granularity.

No files, tests, or entry points are identified. Start by locating existing security-scanning and container-related entry points in the repository, then clarify the supported scan scope and acceptance criteria before implementing. Done should be a testable container-level scanning capability with more granular vulnerability results.

Written by the indexing model from the issue text.