chore: bump version to 0.0.12 and add Grok AI model support

[shivasurya]

This pull request updates SecureFlow to version 0.0.12, introducing new features and improvements focused on security analysis capabilities and AI model support. The most notable changes include the addition of a standalone CLI tool, support for a new AI model, and the removal of a deprecated model. There are also enhancements to security guidelines and dependency updates.

New Features:

• Added a standalone SecureFlow CLI tool for security analysis outside of VS Code, with updated dependencies and licensing (@codepathfinder/secureflow-cli package version bumped to 0.0.3, license changed to AGPL-3.0, and minimum Node.js version set to 16.0.0). [1] [2] [3]

• Introduced support for the Grok 4 Fast Reasoning AI model to enhance security analysis capabilities.

Deprecation and Removal:

• Removed support for the deprecated claude-sonnet-3-5 AI model.

Improvements:

• Enhanced security guidelines, including improved file request rules and security review procedures for more comprehensive analysis.

Version Updates:

• Bumped the version of SecureFlow and its CLI package to 0.0.12 and 0.0.3, respectively, across package.json and package-lock.json files. [1] [2] [3] [4]